Finding the Fourth Proportional to 11,288.64, 15,581.72 and 7,310.04

Step by Step Solution

1. Step 1: Write the proportion equation
   11,288.64 : 15,581.72 = 7,310.04 : x
2. Step 2: Convert to fraction form
   11,288.64/15,581.72 = 7,310.04/x
3. Step 3: Cross multiply
   11,288.64x = 15,581.72 × 7,310.04
4. Step 4: Simplify right side
   11,288.64x = 113,902,996.47
5. Step 5: Solve for x
   x = 113,902,996.47/11,288.64
6. Step 6: Final answer
   x = 10,090.05