Finding the Fourth Proportional to 11,002.64, 15,184.20 and 7,020.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,002.64 : 15,184.20 = 7,020.56 : x
2. Step 2: Convert to fraction form
   11,002.64/15,184.20 = 7,020.56/x
3. Step 3: Cross multiply
   11,002.64x = 15,184.20 × 7,020.56
4. Step 4: Simplify right side
   11,002.64x = 106,601,587.15
5. Step 5: Solve for x
   x = 106,601,587.15/11,002.64
6. Step 6: Final answer
   x = 9,688.73