Finding the Fourth Proportional to 13,050.55, 18,009.60 and 7,082.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,050.55 : 18,009.60 = 7,082.18 : x
2. Step 2: Convert to fraction form
   13,050.55/18,009.60 = 7,082.18/x
3. Step 3: Cross multiply
   13,050.55x = 18,009.60 × 7,082.18
4. Step 4: Simplify right side
   13,050.55x = 127,547,179.86
5. Step 5: Solve for x
   x = 127,547,179.86/13,050.55
6. Step 6: Final answer
   x = 9,773.32