Finding the Fourth Proportional to 13,288.52, 18,355.67 and 9,925.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,288.52 : 18,355.67 = 9,925.50 : x
2. Step 2: Convert to fraction form
   13,288.52/18,355.67 = 9,925.50/x
3. Step 3: Cross multiply
   13,288.52x = 18,355.67 × 9,925.50
4. Step 4: Simplify right side
   13,288.52x = 182,189,152.96
5. Step 5: Solve for x
   x = 182,189,152.96/13,288.52
6. Step 6: Final answer
   x = 13,710.27