Finding the Fourth Proportional to 23,179.86, 31,988.16 and 12,569.46

Step by Step Solution

1. Step 1: Write the proportion equation
   23,179.86 : 31,988.16 = 12,569.46 : x
2. Step 2: Convert to fraction form
   23,179.86/31,988.16 = 12,569.46/x
3. Step 3: Cross multiply
   23,179.86x = 31,988.16 × 12,569.46
4. Step 4: Simplify right side
   23,179.86x = 402,073,897.59
5. Step 5: Solve for x
   x = 402,073,897.59/23,179.86
6. Step 6: Final answer
   x = 17,345.83