Finding the Fourth Proportional to 99,550,053,958.55, 137,391,656,750.42 and 65,284,588,274.51

Step by Step Solution

1. Step 1: Write the proportion equation
   99,550,053,958.55 : 137,391,656,750.42 = 65,284,588,274.51 : x
2. Step 2: Convert to fraction form
   99,550,053,958.55/137,391,656,750.42 = 65,284,588,274.51/x
3. Step 3: Cross multiply
   99,550,053,958.55x = 137,391,656,750.42 × 65,284,588,274.51
4. Step 4: Simplify right side
   99,550,053,958.55x = 8,969,557,743,303,560,003,584
5. Step 5: Solve for x
   x = 8,969,557,743,303,560,003,584/99,550,053,958.55
6. Step 6: Final answer
   x = 90,100,983,240.43