Finding the Fourth Proportional to 11,010.56, 15,199.92 and 7,426.40

Step by Step Solution

1. Step 1: Write the proportion equation
   11,010.56 : 15,199.92 = 7,426.40 : x
2. Step 2: Convert to fraction form
   11,010.56/15,199.92 = 7,426.40/x
3. Step 3: Cross multiply
   11,010.56x = 15,199.92 × 7,426.40
4. Step 4: Simplify right side
   11,010.56x = 112,880,685.89
5. Step 5: Solve for x
   x = 112,880,685.89/11,010.56
6. Step 6: Final answer
   x = 10,252.04