Finding the Fourth Proportional to 66,433.47, 91,626.30 and 42,562.41

Step by Step Solution

1. Step 1: Write the proportion equation
   66,433.47 : 91,626.30 = 42,562.41 : x
2. Step 2: Convert to fraction form
   66,433.47/91,626.30 = 42,562.41/x
3. Step 3: Cross multiply
   66,433.47x = 91,626.30 × 42,562.41
4. Step 4: Simplify right side
   66,433.47x = 3,899,836,147.38
5. Step 5: Solve for x
   x = 3,899,836,147.38/66,433.47
6. Step 6: Final answer
   x = 58,702.88