Finding the Fourth Proportional to 9,443.10, 14,160.60 and 4,761.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,443.10 : 14,160.60 = 4,761.30 : x
2. Step 2: Convert to fraction form
   9,443.10/14,160.60 = 4,761.30/x
3. Step 3: Cross multiply
   9,443.10x = 14,160.60 × 4,761.30
4. Step 4: Simplify right side
   9,443.10x = 67,422,864.78
5. Step 5: Solve for x
   x = 67,422,864.78/9,443.10
6. Step 6: Final answer
   x = 7,139.91