Finding the Fourth Proportional to 13,401.56, 18,492.62 and 7,432.68

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401.56 : 18,492.62 = 7,432.68 : x
2. Step 2: Convert to fraction form
   13,401.56/18,492.62 = 7,432.68/x
3. Step 3: Cross multiply
   13,401.56x = 18,492.62 × 7,432.68
4. Step 4: Simplify right side
   13,401.56x = 137,449,726.82
5. Step 5: Solve for x
   x = 137,449,726.82/13,401.56
6. Step 6: Final answer
   x = 10,256.25