Finding the Fourth Proportional to 22,642.07, 31,242.71 and 12,570.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,642.07 : 31,242.71 = 12,570.59 : x
2. Step 2: Convert to fraction form
   22,642.07/31,242.71 = 12,570.59/x
3. Step 3: Cross multiply
   22,642.07x = 31,242.71 × 12,570.59
4. Step 4: Simplify right side
   22,642.07x = 392,739,078.83
5. Step 5: Solve for x
   x = 392,739,078.83/22,642.07
6. Step 6: Final answer
   x = 17,345.55