Finding the Fourth Proportional to 12,961.32, 19,443.85 and 5,565.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,961.32 : 19,443.85 = 5,565.71 : x
2. Step 2: Convert to fraction form
   12,961.32/19,443.85 = 5,565.71/x
3. Step 3: Cross multiply
   12,961.32x = 19,443.85 × 5,565.71
4. Step 4: Simplify right side
   12,961.32x = 108,218,865.08
5. Step 5: Solve for x
   x = 108,218,865.08/12,961.32
6. Step 6: Final answer
   x = 8,349.37