Finding the Fourth Proportional to 22,670.10, 31,284.90 and 12,598.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,670.10 : 31,284.90 = 12,598.56 : x
2. Step 2: Convert to fraction form
   22,670.10/31,284.90 = 12,598.56/x
3. Step 3: Cross multiply
   22,670.10x = 31,284.90 × 12,598.56
4. Step 4: Simplify right side
   22,670.10x = 394,144,689.74
5. Step 5: Solve for x
   x = 394,144,689.74/22,670.10
6. Step 6: Final answer
   x = 17,386.10