Finding the Fourth Proportional to 11,238.04, 15,499.70 and 7,205.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,238.04 : 15,499.70 = 7,205.24 : x
2. Step 2: Convert to fraction form
   11,238.04/15,499.70 = 7,205.24/x
3. Step 3: Cross multiply
   11,238.04x = 15,499.70 × 7,205.24
4. Step 4: Simplify right side
   11,238.04x = 111,679,041.51
5. Step 5: Solve for x
   x = 111,679,041.51/11,238.04
6. Step 6: Final answer
   x = 9,937.59