Finding the Fourth Proportional to 22,307.56, 30,787.02 and 12,749.00

Step by Step Solution

1. Step 1: Write the proportion equation
   22,307.56 : 30,787.02 = 12,749.00 : x
2. Step 2: Convert to fraction form
   22,307.56/30,787.02 = 12,749.00/x
3. Step 3: Cross multiply
   22,307.56x = 30,787.02 × 12,749.00
4. Step 4: Simplify right side
   22,307.56x = 392,503,564.04
5. Step 5: Solve for x
   x = 392,503,564.04/22,307.56
6. Step 6: Final answer
   x = 17,595.09