Finding the Fourth Proportional to 64,879.83, 89,534.30 and 35,071.83

Step by Step Solution

1. Step 1: Write the proportion equation
   64,879.83 : 89,534.30 = 35,071.83 : x
2. Step 2: Convert to fraction form
   64,879.83/89,534.30 = 35,071.83/x
3. Step 3: Cross multiply
   64,879.83x = 89,534.30 × 35,071.83
4. Step 4: Simplify right side
   64,879.83x = 3,140,131,573.41
5. Step 5: Solve for x
   x = 3,140,131,573.41/64,879.83
6. Step 6: Final answer
   x = 48,399.20