Finding the Fourth Proportional to 64,993.32, 89,697.06 and 39,494.07

Step by Step Solution

1. Step 1: Write the proportion equation
   64,993.32 : 89,697.06 = 39,494.07 : x
2. Step 2: Convert to fraction form
   64,993.32/89,697.06 = 39,494.07/x
3. Step 3: Cross multiply
   64,993.32x = 89,697.06 × 39,494.07
4. Step 4: Simplify right side
   64,993.32x = 3,542,501,966.43
5. Step 5: Solve for x
   x = 3,542,501,966.43/64,993.32
6. Step 6: Final answer
   x = 54,505.63