Finding the Fourth Proportional to 11,353.56, 15,663.34 and 7,159.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,353.56 : 15,663.34 = 7,159.38 : x
2. Step 2: Convert to fraction form
   11,353.56/15,663.34 = 7,159.38/x
3. Step 3: Cross multiply
   11,353.56x = 15,663.34 × 7,159.38
4. Step 4: Simplify right side
   11,353.56x = 112,139,689.02
5. Step 5: Solve for x
   x = 112,139,689.02/11,353.56
6. Step 6: Final answer
   x = 9,877.06