Finding the Fourth Proportional to 22,774.46, 31,428.90 and 12,703.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,774.46 : 31,428.90 = 12,703.55 : x
2. Step 2: Convert to fraction form
   22,774.46/31,428.90 = 12,703.55/x
3. Step 3: Cross multiply
   22,774.46x = 31,428.90 × 12,703.55
4. Step 4: Simplify right side
   22,774.46x = 399,258,445.45
5. Step 5: Solve for x
   x = 399,258,445.45/22,774.46
6. Step 6: Final answer
   x = 17,530.98