Finding the Fourth Proportional to 22,572.74, 31,147.73 and 13,012.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,572.74 : 31,147.73 = 13,012.52 : x
2. Step 2: Convert to fraction form
   22,572.74/31,147.73 = 13,012.52/x
3. Step 3: Cross multiply
   22,572.74x = 31,147.73 × 13,012.52
4. Step 4: Simplify right side
   22,572.74x = 405,310,493.10
5. Step 5: Solve for x
   x = 405,310,493.10/22,572.74
6. Step 6: Final answer
   x = 17,955.75