Finding the Fourth Proportional to 12,505.61, 18,749.14 and 7,574.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,505.61 : 18,749.14 = 7,574.15 : x
2. Step 2: Convert to fraction form
   12,505.61/18,749.14 = 7,574.15/x
3. Step 3: Cross multiply
   12,505.61x = 18,749.14 × 7,574.15
4. Step 4: Simplify right side
   12,505.61x = 142,008,798.73
5. Step 5: Solve for x
   x = 142,008,798.73/12,505.61
6. Step 6: Final answer
   x = 11,355.61