Finding the Fourth Proportional to 12,412,985,449.39, 17,139,680,191.15 and 9,993,983,896.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,412,985,449.39 : 17,139,680,191.15 = 9,993,983,896.69 : x
2. Step 2: Convert to fraction form
   12,412,985,449.39/17,139,680,191.15 = 9,993,983,896.69/x
3. Step 3: Cross multiply
   12,412,985,449.39x = 17,139,680,191.15 × 9,993,983,896.69
4. Step 4: Simplify right side
   12,412,985,449.39x = 171,293,687,824,696,836,096
5. Step 5: Solve for x
   x = 171,293,687,824,696,836,096/12,412,985,449.39
6. Step 6: Final answer
   x = 13,799,555,999.09