Finding the Fourth Proportional to 13,158.10, 18,158.17 and 7,492.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,158.10 : 18,158.17 = 7,492.56 : x
2. Step 2: Convert to fraction form
   13,158.10/18,158.17 = 7,492.56/x
3. Step 3: Cross multiply
   13,158.10x = 18,158.17 × 7,492.56
4. Step 4: Simplify right side
   13,158.10x = 136,051,178.22
5. Step 5: Solve for x
   x = 136,051,178.22/13,158.10
6. Step 6: Final answer
   x = 10,339.73