Finding the Fourth Proportional to 9,105.63, 12,565.75 and 5,126.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,105.63 : 12,565.75 = 5,126.76 : x
2. Step 2: Convert to fraction form
   9,105.63/12,565.75 = 5,126.76/x
3. Step 3: Cross multiply
   9,105.63x = 12,565.75 × 5,126.76
4. Step 4: Simplify right side
   9,105.63x = 64,421,496.01
5. Step 5: Solve for x
   x = 64,421,496.01/9,105.63
6. Step 6: Final answer
   x = 7,074.91