Finding the Fourth Proportional to 9,106.72, 12,565.99 and 5,073.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,106.72 : 12,565.99 = 5,073.55 : x
2. Step 2: Convert to fraction form
   9,106.72/12,565.99 = 5,073.55/x
3. Step 3: Cross multiply
   9,106.72x = 12,565.99 × 5,073.55
4. Step 4: Simplify right side
   9,106.72x = 63,754,178.56
5. Step 5: Solve for x
   x = 63,754,178.56/9,106.72
6. Step 6: Final answer
   x = 7,000.78