Finding the Fourth Proportional to 78,375.29, 108,157.88 and 42,565.31

Step by Step Solution

1. Step 1: Write the proportion equation
   78,375.29 : 108,157.88 = 42,565.31 : x
2. Step 2: Convert to fraction form
   78,375.29/108,157.88 = 42,565.31/x
3. Step 3: Cross multiply
   78,375.29x = 108,157.88 × 42,565.31
4. Step 4: Simplify right side
   78,375.29x = 4,603,773,478.32
5. Step 5: Solve for x
   x = 4,603,773,478.32/78,375.29
6. Step 6: Final answer
   x = 58,740.11