Finding the Fourth Proportional to 10,859.52, 14,980.64 and 7,505.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,859.52 : 14,980.64 = 7,505.60 : x
2. Step 2: Convert to fraction form
   10,859.52/14,980.64 = 7,505.60/x
3. Step 3: Cross multiply
   10,859.52x = 14,980.64 × 7,505.60
4. Step 4: Simplify right side
   10,859.52x = 112,438,691.58
5. Step 5: Solve for x
   x = 112,438,691.58/10,859.52
6. Step 6: Final answer
   x = 10,353.93