Finding the Fourth Proportional to 11,111.28, 15,294.60 and 10,061.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,111.28 : 15,294.60 = 10,061.52 : x
2. Step 2: Convert to fraction form
   11,111.28/15,294.60 = 10,061.52/x
3. Step 3: Cross multiply
   11,111.28x = 15,294.60 × 10,061.52
4. Step 4: Simplify right side
   11,111.28x = 153,886,923.79
5. Step 5: Solve for x
   x = 153,886,923.79/11,111.28
6. Step 6: Final answer
   x = 13,849.61