Finding the Fourth Proportional to 92,005.39, 138,061.28 and 38,693.08

Step by Step Solution

1. Step 1: Write the proportion equation
   92,005.39 : 138,061.28 = 38,693.08 : x
2. Step 2: Convert to fraction form
   92,005.39/138,061.28 = 38,693.08/x
3. Step 3: Cross multiply
   92,005.39x = 138,061.28 × 38,693.08
4. Step 4: Simplify right side
   92,005.39x = 5,342,016,151.94
5. Step 5: Solve for x
   x = 5,342,016,151.94/92,005.39
6. Step 6: Final answer
   x = 58,061.99