Finding the Fourth Proportional to 22,594, 31,180.20 and 12,658

Step by Step Solution

1. Step 1: Write the proportion equation
   22,594 : 31,180.20 = 12,658 : x
2. Step 2: Convert to fraction form
   22,594/31,180.20 = 12,658/x
3. Step 3: Cross multiply
   22,594x = 31,180.20 × 12,658
4. Step 4: Simplify right side
   22,594x = 394,678,971.60
5. Step 5: Solve for x
   x = 394,678,971.60/22,594
6. Step 6: Final answer
   x = 17,468.31