Finding the Fourth Proportional to 92,448.72, 138,693.86 and 29,272.62

Step by Step Solution

1. Step 1: Write the proportion equation
   92,448.72 : 138,693.86 = 29,272.62 : x
2. Step 2: Convert to fraction form
   92,448.72/138,693.86 = 29,272.62/x
3. Step 3: Cross multiply
   92,448.72x = 138,693.86 × 29,272.62
4. Step 4: Simplify right side
   92,448.72x = 4,059,932,513.75
5. Step 5: Solve for x
   x = 4,059,932,513.75/92,448.72
6. Step 6: Final answer
   x = 43,915.51