Finding the Fourth Proportional to 23,180.52, 31,989.12 and 12,570.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,180.52 : 31,989.12 = 12,570.12 : x
2. Step 2: Convert to fraction form
   23,180.52/31,989.12 = 12,570.12/x
3. Step 3: Cross multiply
   23,180.52x = 31,989.12 × 12,570.12
4. Step 4: Simplify right side
   23,180.52x = 402,107,077.09
5. Step 5: Solve for x
   x = 402,107,077.09/23,180.52
6. Step 6: Final answer
   x = 17,346.77