Finding the Fourth Proportional to 22,503.15, 31,051.67 and 12,430.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,503.15 : 31,051.67 = 12,430.98 : x
2. Step 2: Convert to fraction form
   22,503.15/31,051.67 = 12,430.98/x
3. Step 3: Cross multiply
   22,503.15x = 31,051.67 × 12,430.98
4. Step 4: Simplify right side
   22,503.15x = 386,002,626.58
5. Step 5: Solve for x
   x = 386,002,626.58/22,503.15
6. Step 6: Final answer
   x = 17,153.27