Finding the Fourth Proportional to 22,488.62, 31,038.83 and 12,935.19

Step by Step Solution

1. Step 1: Write the proportion equation
   22,488.62 : 31,038.83 = 12,935.19 : x
2. Step 2: Convert to fraction form
   22,488.62/31,038.83 = 12,935.19/x
3. Step 3: Cross multiply
   22,488.62x = 31,038.83 × 12,935.19
4. Step 4: Simplify right side
   22,488.62x = 401,493,098.75
5. Step 5: Solve for x
   x = 401,493,098.75/22,488.62
6. Step 6: Final answer
   x = 17,853.17