Finding the Fourth Proportional to 99,621,300.56, 137,480,813.34 and 57,802,208

Step by Step Solution

1. Step 1: Write the proportion equation
   99,621,300.56 : 137,480,813.34 = 57,802,208 : x
2. Step 2: Convert to fraction form
   99,621,300.56/137,480,813.34 = 57,802,208/x
3. Step 3: Cross multiply
   99,621,300.56x = 137,480,813.34 × 57,802,208
4. Step 4: Simplify right side
   99,621,300.56x = 7,946,694,568,687,855
5. Step 5: Solve for x
   x = 7,946,694,568,687,855/99,621,300.56
6. Step 6: Final answer
   x = 79,769,030.56