Finding the Fourth Proportional to 65,107.62, 89,818.18 and 42,144.86

Step by Step Solution

1. Step 1: Write the proportion equation
   65,107.62 : 89,818.18 = 42,144.86 : x
2. Step 2: Convert to fraction form
   65,107.62/89,818.18 = 42,144.86/x
3. Step 3: Cross multiply
   65,107.62x = 89,818.18 × 42,144.86
4. Step 4: Simplify right side
   65,107.62x = 3,785,374,740.74
5. Step 5: Solve for x
   x = 3,785,374,740.74/65,107.62
6. Step 6: Final answer
   x = 58,140.27