Finding the Fourth Proportional to 75,157.29, 103,691.32 and 42,868.71

Step by Step Solution

1. Step 1: Write the proportion equation
   75,157.29 : 103,691.32 = 42,868.71 : x
2. Step 2: Convert to fraction form
   75,157.29/103,691.32 = 42,868.71/x
3. Step 3: Cross multiply
   75,157.29x = 103,691.32 × 42,868.71
4. Step 4: Simplify right side
   75,157.29x = 4,445,113,019.43
5. Step 5: Solve for x
   x = 4,445,113,019.43/75,157.29
6. Step 6: Final answer
   x = 59,144.14