Finding the Fourth Proportional to 10,615.12, 14,648.76 and 5,899.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,615.12 : 14,648.76 = 5,899.30 : x
2. Step 2: Convert to fraction form
   10,615.12/14,648.76 = 5,899.30/x
3. Step 3: Cross multiply
   10,615.12x = 14,648.76 × 5,899.30
4. Step 4: Simplify right side
   10,615.12x = 86,417,429.87
5. Step 5: Solve for x
   x = 86,417,429.87/10,615.12
6. Step 6: Final answer
   x = 8,140.98