Finding the Fourth Proportional to 12,793.61, 19,191.33 and 4,472.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,793.61 : 19,191.33 = 4,472.69 : x
2. Step 2: Convert to fraction form
   12,793.61/19,191.33 = 4,472.69/x
3. Step 3: Cross multiply
   12,793.61x = 19,191.33 × 4,472.69
4. Step 4: Simplify right side
   12,793.61x = 85,836,773.82
5. Step 5: Solve for x
   x = 85,836,773.82/12,793.61
6. Step 6: Final answer
   x = 6,709.35