Finding the Fourth Proportional to 74,174.53, 102,371.30 and 42,345.31

Step by Step Solution

1. Step 1: Write the proportion equation
   74,174.53 : 102,371.30 = 42,345.31 : x
2. Step 2: Convert to fraction form
   74,174.53/102,371.30 = 42,345.31/x
3. Step 3: Cross multiply
   74,174.53x = 102,371.30 × 42,345.31
4. Step 4: Simplify right side
   74,174.53x = 4,334,944,433.60
5. Step 5: Solve for x
   x = 4,334,944,433.60/74,174.53
6. Step 6: Final answer
   x = 58,442.49