Finding the Fourth Proportional to 13,158.04, 18,158.11 and 7,492.79

Step by Step Solution

1. Step 1: Write the proportion equation
   13,158.04 : 18,158.11 = 7,492.79 : x
2. Step 2: Convert to fraction form
   13,158.04/18,158.11 = 7,492.79/x
3. Step 3: Cross multiply
   13,158.04x = 18,158.11 × 7,492.79
4. Step 4: Simplify right side
   13,158.04x = 136,054,795.50
5. Step 5: Solve for x
   x = 136,054,795.50/13,158.04
6. Step 6: Final answer
   x = 10,340.05