Finding the Fourth Proportional to 11,259.91, 15,539.12 and 7,476.55

Step by Step Solution

1. Step 1: Write the proportion equation
   11,259.91 : 15,539.12 = 7,476.55 : x
2. Step 2: Convert to fraction form
   11,259.91/15,539.12 = 7,476.55/x
3. Step 3: Cross multiply
   11,259.91x = 15,539.12 × 7,476.55
4. Step 4: Simplify right side
   11,259.91x = 116,179,025.82
5. Step 5: Solve for x
   x = 116,179,025.82/11,259.91
6. Step 6: Final answer
   x = 10,317.93