Finding the Fourth Proportional to 22,630.77, 31,230.80 and 12,559.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,630.77 : 31,230.80 = 12,559.86 : x
2. Step 2: Convert to fraction form
   22,630.77/31,230.80 = 12,559.86/x
3. Step 3: Cross multiply
   22,630.77x = 31,230.80 × 12,559.86
4. Step 4: Simplify right side
   22,630.77x = 392,254,412.89
5. Step 5: Solve for x
   x = 392,254,412.89/22,630.77
6. Step 6: Final answer
   x = 17,332.79