Finding the Fourth Proportional to 11,155.52, 15,395.33 and 7,372.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,155.52 : 15,395.33 = 7,372.06 : x
2. Step 2: Convert to fraction form
   11,155.52/15,395.33 = 7,372.06/x
3. Step 3: Cross multiply
   11,155.52x = 15,395.33 × 7,372.06
4. Step 4: Simplify right side
   11,155.52x = 113,495,276.42
5. Step 5: Solve for x
   x = 113,495,276.42/11,155.52
6. Step 6: Final answer
   x = 10,173.91