Finding the Fourth Proportional to 13,300.20, 18,353.54 and 7,331.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300.20 : 18,353.54 = 7,331.86 : x
2. Step 2: Convert to fraction form
   13,300.20/18,353.54 = 7,331.86/x
3. Step 3: Cross multiply
   13,300.20x = 18,353.54 × 7,331.86
4. Step 4: Simplify right side
   13,300.20x = 134,565,585.78
5. Step 5: Solve for x
   x = 134,565,585.78/13,300.20
6. Step 6: Final answer
   x = 10,117.56