Finding the Fourth Proportional to 22,602.62, 31,189.92 and 12,530.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,602.62 : 31,189.92 = 12,530.09 : x
2. Step 2: Convert to fraction form
   22,602.62/31,189.92 = 12,530.09/x
3. Step 3: Cross multiply
   22,602.62x = 31,189.92 × 12,530.09
4. Step 4: Simplify right side
   22,602.62x = 390,812,504.69
5. Step 5: Solve for x
   x = 390,812,504.69/22,602.62
6. Step 6: Final answer
   x = 17,290.58