Finding the Fourth Proportional to 49,502.72, 74,076.71 and 42,862.12

Step by Step Solution

1. Step 1: Write the proportion equation
   49,502.72 : 74,076.71 = 42,862.12 : x
2. Step 2: Convert to fraction form
   49,502.72/74,076.71 = 42,862.12/x
3. Step 3: Cross multiply
   49,502.72x = 74,076.71 × 42,862.12
4. Step 4: Simplify right side
   49,502.72x = 3,175,084,833.23
5. Step 5: Solve for x
   x = 3,175,084,833.23/49,502.72
6. Step 6: Final answer
   x = 64,139.60