Finding the Fourth Proportional to 89,235.64, 133,766.42 and 42,475.96

Step by Step Solution

1. Step 1: Write the proportion equation
   89,235.64 : 133,766.42 = 42,475.96 : x
2. Step 2: Convert to fraction form
   89,235.64/133,766.42 = 42,475.96/x
3. Step 3: Cross multiply
   89,235.64x = 133,766.42 × 42,475.96
4. Step 4: Simplify right side
   89,235.64x = 5,681,857,105.26
5. Step 5: Solve for x
   x = 5,681,857,105.26/89,235.64
6. Step 6: Final answer
   x = 63,672.51