Finding the Fourth Proportional to 11,339.74, 15,588.31 and 10,132.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,339.74 : 15,588.31 = 10,132.06 : x
2. Step 2: Convert to fraction form
   11,339.74/15,588.31 = 10,132.06/x
3. Step 3: Cross multiply
   11,339.74x = 15,588.31 × 10,132.06
4. Step 4: Simplify right side
   11,339.74x = 157,941,641.56
5. Step 5: Solve for x
   x = 157,941,641.56/11,339.74
6. Step 6: Final answer
   x = 13,928.15