Finding the Fourth Proportional to 11,392.50, 15,719.21 and 7,141.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,392.50 : 15,719.21 = 7,141.52 : x
2. Step 2: Convert to fraction form
   11,392.50/15,719.21 = 7,141.52/x
3. Step 3: Cross multiply
   11,392.50x = 15,719.21 × 7,141.52
4. Step 4: Simplify right side
   11,392.50x = 112,259,034.72
5. Step 5: Solve for x
   x = 112,259,034.72/11,392.50
6. Step 6: Final answer
   x = 9,853.77