Finding the Fourth Proportional to 13,300.31, 18,354.22 and 7,332.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300.31 : 18,354.22 = 7,332.55 : x
2. Step 2: Convert to fraction form
   13,300.31/18,354.22 = 7,332.55/x
3. Step 3: Cross multiply
   13,300.31x = 18,354.22 × 7,332.55
4. Step 4: Simplify right side
   13,300.31x = 134,583,171.64
5. Step 5: Solve for x
   x = 134,583,171.64/13,300.31
6. Step 6: Final answer
   x = 10,118.80