Finding the Fourth Proportional to 64,490.68, 89,027.37 and 43,016.35

Step by Step Solution

1. Step 1: Write the proportion equation
   64,490.68 : 89,027.37 = 43,016.35 : x
2. Step 2: Convert to fraction form
   64,490.68/89,027.37 = 43,016.35/x
3. Step 3: Cross multiply
   64,490.68x = 89,027.37 × 43,016.35
4. Step 4: Simplify right side
   64,490.68x = 3,829,632,507.50
5. Step 5: Solve for x
   x = 3,829,632,507.50/64,490.68
6. Step 6: Final answer
   x = 59,382.73