Finding the Fourth Proportional to 99,708,620.02, 137,620,853.89 and 58,468,798.42

Step by Step Solution

1. Step 1: Write the proportion equation
   99,708,620.02 : 137,620,853.89 = 58,468,798.42 : x
2. Step 2: Convert to fraction form
   99,708,620.02/137,620,853.89 = 58,468,798.42/x
3. Step 3: Cross multiply
   99,708,620.02x = 137,620,853.89 × 58,468,798.42
4. Step 4: Simplify right side
   99,708,620.02x = 8,046,525,964,482,682
5. Step 5: Solve for x
   x = 8,046,525,964,482,682/99,708,620.02
6. Step 6: Final answer
   x = 80,700,404.47