Finding the Fourth Proportional to 11,181.62, 15,437.39 and 7,407.99

Step by Step Solution

1. Step 1: Write the proportion equation
   11,181.62 : 15,437.39 = 7,407.99 : x
2. Step 2: Convert to fraction form
   11,181.62/15,437.39 = 7,407.99/x
3. Step 3: Cross multiply
   11,181.62x = 15,437.39 × 7,407.99
4. Step 4: Simplify right side
   11,181.62x = 114,359,993.71
5. Step 5: Solve for x
   x = 114,359,993.71/11,181.62
6. Step 6: Final answer
   x = 10,227.50