Finding the Fourth Proportional to 12,966.30, 19,449.54 and 5,564.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,966.30 : 19,449.54 = 5,564.52 : x
2. Step 2: Convert to fraction form
   12,966.30/19,449.54 = 5,564.52/x
3. Step 3: Cross multiply
   12,966.30x = 19,449.54 × 5,564.52
4. Step 4: Simplify right side
   12,966.30x = 108,227,354.32
5. Step 5: Solve for x
   x = 108,227,354.32/12,966.30
6. Step 6: Final answer
   x = 8,346.82