Finding the Fourth Proportional to 73,939.31, 102,036.26 and 42,111.17

Step by Step Solution

1. Step 1: Write the proportion equation
   73,939.31 : 102,036.26 = 42,111.17 : x
2. Step 2: Convert to fraction form
   73,939.31/102,036.26 = 42,111.17/x
3. Step 3: Cross multiply
   73,939.31x = 102,036.26 × 42,111.17
4. Step 4: Simplify right side
   73,939.31x = 4,296,866,335.56
5. Step 5: Solve for x
   x = 4,296,866,335.56/73,939.31
6. Step 6: Final answer
   x = 58,113.42