Finding the Fourth Proportional to 22,653.63, 31,261.61 and 12,581.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,653.63 : 31,261.61 = 12,581.69 : x
2. Step 2: Convert to fraction form
   22,653.63/31,261.61 = 12,581.69/x
3. Step 3: Cross multiply
   22,653.63x = 31,261.61 × 12,581.69
4. Step 4: Simplify right side
   22,653.63x = 393,323,761.07
5. Step 5: Solve for x
   x = 393,323,761.07/22,653.63
6. Step 6: Final answer
   x = 17,362.50