Finding the Fourth Proportional to 22,488.87, 31,034.43 and 12,417.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,488.87 : 31,034.43 = 12,417.30 : x
2. Step 2: Convert to fraction form
   22,488.87/31,034.43 = 12,417.30/x
3. Step 3: Cross multiply
   22,488.87x = 31,034.43 × 12,417.30
4. Step 4: Simplify right side
   22,488.87x = 385,363,827.64
5. Step 5: Solve for x
   x = 385,363,827.64/22,488.87
6. Step 6: Final answer
   x = 17,135.76