Finding the Fourth Proportional to 90,382,700, 124,788,186 and 69,437,429.12

Step by Step Solution

1. Step 1: Write the proportion equation
   90,382,700 : 124,788,186 = 69,437,429.12 : x
2. Step 2: Convert to fraction form
   90,382,700/124,788,186 = 69,437,429.12/x
3. Step 3: Cross multiply
   90,382,700x = 124,788,186 × 69,437,429.12
4. Step 4: Simplify right side
   90,382,700x = 8,664,970,820,388,377
5. Step 5: Solve for x
   x = 8,664,970,820,388,377/90,382,700
6. Step 6: Final answer
   x = 95,869,793.89