Finding the Fourth Proportional to 89,894.32, 134,798.52 and 42,469.86

Step by Step Solution

1. Step 1: Write the proportion equation
   89,894.32 : 134,798.52 = 42,469.86 : x
2. Step 2: Convert to fraction form
   89,894.32/134,798.52 = 42,469.86/x
3. Step 3: Cross multiply
   89,894.32x = 134,798.52 × 42,469.86
4. Step 4: Simplify right side
   89,894.32x = 5,724,874,272.61
5. Step 5: Solve for x
   x = 5,724,874,272.61/89,894.32
6. Step 6: Final answer
   x = 63,684.49