Finding the Fourth Proportional to 23,118.12, 31,902.76 and 12,507.52

Step by Step Solution

1. Step 1: Write the proportion equation
   23,118.12 : 31,902.76 = 12,507.52 : x
2. Step 2: Convert to fraction form
   23,118.12/31,902.76 = 12,507.52/x
3. Step 3: Cross multiply
   23,118.12x = 31,902.76 × 12,507.52
4. Step 4: Simplify right side
   23,118.12x = 399,024,408.76
5. Step 5: Solve for x
   x = 399,024,408.76/23,118.12
6. Step 6: Final answer
   x = 17,260.24