Finding the Fourth Proportional to 10,526.88, 14,528.16 and 9,039.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,526.88 : 14,528.16 = 9,039.72 : x
2. Step 2: Convert to fraction form
   10,526.88/14,528.16 = 9,039.72/x
3. Step 3: Cross multiply
   10,526.88x = 14,528.16 × 9,039.72
4. Step 4: Simplify right side
   10,526.88x = 131,330,498.52
5. Step 5: Solve for x
   x = 131,330,498.52/10,526.88
6. Step 6: Final answer
   x = 12,475.73