Finding the Fourth Proportional to 22,830.68, 31,507.01 and 12,759.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,830.68 : 31,507.01 = 12,759.15 : x
2. Step 2: Convert to fraction form
   22,830.68/31,507.01 = 12,759.15/x
3. Step 3: Cross multiply
   22,830.68x = 31,507.01 × 12,759.15
4. Step 4: Simplify right side
   22,830.68x = 402,002,666.64
5. Step 5: Solve for x
   x = 402,002,666.64/22,830.68
6. Step 6: Final answer
   x = 17,608.00