Finding the Fourth Proportional to 59,702.69, 89,480.21 and 30,128.98

Step by Step Solution

1. Step 1: Write the proportion equation
   59,702.69 : 89,480.21 = 30,128.98 : x
2. Step 2: Convert to fraction form
   59,702.69/89,480.21 = 30,128.98/x
3. Step 3: Cross multiply
   59,702.69x = 89,480.21 × 30,128.98
4. Step 4: Simplify right side
   59,702.69x = 2,695,947,457.49
5. Step 5: Solve for x
   x = 2,695,947,457.49/59,702.69
6. Step 6: Final answer
   x = 45,156.21