Finding the Fourth Proportional to 92,665.42, 138,948.17 and 49,993.72

Step by Step Solution

1. Step 1: Write the proportion equation
   92,665.42 : 138,948.17 = 49,993.72 : x
2. Step 2: Convert to fraction form
   92,665.42/138,948.17 = 49,993.72/x
3. Step 3: Cross multiply
   92,665.42x = 138,948.17 × 49,993.72
4. Step 4: Simplify right side
   92,665.42x = 6,946,535,308.15
5. Step 5: Solve for x
   x = 6,946,535,308.15/92,665.42
6. Step 6: Final answer
   x = 74,963.62