Finding the Fourth Proportional to 22,513.95, 31,069.88 and 12,443.04

Step by Step Solution

1. Step 1: Write the proportion equation
   22,513.95 : 31,069.88 = 12,443.04 : x
2. Step 2: Convert to fraction form
   22,513.95/31,069.88 = 12,443.04/x
3. Step 3: Cross multiply
   22,513.95x = 31,069.88 × 12,443.04
4. Step 4: Simplify right side
   22,513.95x = 386,603,697.42
5. Step 5: Solve for x
   x = 386,603,697.42/22,513.95
6. Step 6: Final answer
   x = 17,171.74