Finding the Fourth Proportional to 22,585.08, 31,167.08 and 12,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,585.08 : 31,167.08 = 12,513.50 : x
2. Step 2: Convert to fraction form
   22,585.08/31,167.08 = 12,513.50/x
3. Step 3: Cross multiply
   22,585.08x = 31,167.08 × 12,513.50
4. Step 4: Simplify right side
   22,585.08x = 390,009,255.58
5. Step 5: Solve for x
   x = 390,009,255.58/22,585.08
6. Step 6: Final answer
   x = 17,268.45