Finding the Fourth Proportional to 89,432.69, 134,211.90 and 42,049.95

Step by Step Solution

1. Step 1: Write the proportion equation
   89,432.69 : 134,211.90 = 42,049.95 : x
2. Step 2: Convert to fraction form
   89,432.69/134,211.90 = 42,049.95/x
3. Step 3: Cross multiply
   89,432.69x = 134,211.90 × 42,049.95
4. Step 4: Simplify right side
   89,432.69x = 5,643,603,684.41
5. Step 5: Solve for x
   x = 5,643,603,684.41/89,432.69
6. Step 6: Final answer
   x = 63,104.49