Finding the Fourth Proportional to 124,990,505.16, 172,494,007.42 and 69,985,880.52

Step by Step Solution

1. Step 1: Write the proportion equation
   124,990,505.16 : 172,494,007.42 = 69,985,880.52 : x
2. Step 2: Convert to fraction form
   124,990,505.16/172,494,007.42 = 69,985,880.52/x
3. Step 3: Cross multiply
   124,990,505.16x = 172,494,007.42 × 69,985,880.52
4. Step 4: Simplify right side
   124,990,505.16x = 12,072,144,993,712,112
5. Step 5: Solve for x
   x = 12,072,144,993,712,112/124,990,505.16
6. Step 6: Final answer
   x = 96,584,496.38