Finding the Fourth Proportional to 12,565.28, 18,848.56 and 4,774.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,565.28 : 18,848.56 = 4,774.72 : x
2. Step 2: Convert to fraction form
   12,565.28/18,848.56 = 4,774.72/x
3. Step 3: Cross multiply
   12,565.28x = 18,848.56 × 4,774.72
4. Step 4: Simplify right side
   12,565.28x = 89,996,596.40
5. Step 5: Solve for x
   x = 89,996,596.40/12,565.28
6. Step 6: Final answer
   x = 7,162.32