Finding the Fourth Proportional to 9,879.32, 13,633.68 and 5,899.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,879.32 : 13,633.68 = 5,899.69 : x
2. Step 2: Convert to fraction form
   9,879.32/13,633.68 = 5,899.69/x
3. Step 3: Cross multiply
   9,879.32x = 13,633.68 × 5,899.69
4. Step 4: Simplify right side
   9,879.32x = 80,434,417.39
5. Step 5: Solve for x
   x = 80,434,417.39/9,879.32
6. Step 6: Final answer
   x = 8,141.70