Finding the Fourth Proportional to 11,089.15, 15,277.03 and 7,725.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,089.15 : 15,277.03 = 7,725.88 : x
2. Step 2: Convert to fraction form
   11,089.15/15,277.03 = 7,725.88/x
3. Step 3: Cross multiply
   11,089.15x = 15,277.03 × 7,725.88
4. Step 4: Simplify right side
   11,089.15x = 118,028,385.52
5. Step 5: Solve for x
   x = 118,028,385.52/11,089.15
6. Step 6: Final answer
   x = 10,643.60