Finding the Fourth Proportional to 12,885.74, 19,322.62 and 7,550.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,885.74 : 19,322.62 = 7,550.52 : x
2. Step 2: Convert to fraction form
   12,885.74/19,322.62 = 7,550.52/x
3. Step 3: Cross multiply
   12,885.74x = 19,322.62 × 7,550.52
4. Step 4: Simplify right side
   12,885.74x = 145,895,828.76
5. Step 5: Solve for x
   x = 145,895,828.76/12,885.74
6. Step 6: Final answer
   x = 11,322.27