Finding the Fourth Proportional to 11,453.76, 17,168.31 and 7,492.55

Step by Step Solution

1. Step 1: Write the proportion equation
   11,453.76 : 17,168.31 = 7,492.55 : x
2. Step 2: Convert to fraction form
   11,453.76/17,168.31 = 7,492.55/x
3. Step 3: Cross multiply
   11,453.76x = 17,168.31 × 7,492.55
4. Step 4: Simplify right side
   11,453.76x = 128,634,335.25
5. Step 5: Solve for x
   x = 128,634,335.25/11,453.76
6. Step 6: Final answer
   x = 11,230.75