Finding the Fourth Proportional to 12,407.72, 18,595.91 and 5,008.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,407.72 : 18,595.91 = 5,008.05 : x
2. Step 2: Convert to fraction form
   12,407.72/18,595.91 = 5,008.05/x
3. Step 3: Cross multiply
   12,407.72x = 18,595.91 × 5,008.05
4. Step 4: Simplify right side
   12,407.72x = 93,129,222.04
5. Step 5: Solve for x
   x = 93,129,222.04/12,407.72
6. Step 6: Final answer
   x = 7,505.75