Finding the Fourth Proportional to 13,152.32, 18,145.50 and 7,773.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,152.32 : 18,145.50 = 7,773.62 : x
2. Step 2: Convert to fraction form
   13,152.32/18,145.50 = 7,773.62/x
3. Step 3: Cross multiply
   13,152.32x = 18,145.50 × 7,773.62
4. Step 4: Simplify right side
   13,152.32x = 141,056,221.71
5. Step 5: Solve for x
   x = 141,056,221.71/13,152.32
6. Step 6: Final answer
   x = 10,724.82