Finding the Fourth Proportional to 22,492.68, 31,038.30 and 13,062.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,492.68 : 31,038.30 = 13,062.12 : x
2. Step 2: Convert to fraction form
   22,492.68/31,038.30 = 13,062.12/x
3. Step 3: Cross multiply
   22,492.68x = 31,038.30 × 13,062.12
4. Step 4: Simplify right side
   22,492.68x = 405,425,999.20
5. Step 5: Solve for x
   x = 405,425,999.20/22,492.68
6. Step 6: Final answer
   x = 18,024.80