Finding the Fourth Proportional to 22,474.02, 31,014.12 and 12,402.45

Step by Step Solution

1. Step 1: Write the proportion equation
   22,474.02 : 31,014.12 = 12,402.45 : x
2. Step 2: Convert to fraction form
   22,474.02/31,014.12 = 12,402.45/x
3. Step 3: Cross multiply
   22,474.02x = 31,014.12 × 12,402.45
4. Step 4: Simplify right side
   22,474.02x = 384,651,072.59
5. Step 5: Solve for x
   x = 384,651,072.59/22,474.02
6. Step 6: Final answer
   x = 17,115.37