Finding the Fourth Proportional to 64,661.48, 89,236.50 and 43,114.04

Step by Step Solution

1. Step 1: Write the proportion equation
   64,661.48 : 89,236.50 = 43,114.04 : x
2. Step 2: Convert to fraction form
   64,661.48/89,236.50 = 43,114.04/x
3. Step 3: Cross multiply
   64,661.48x = 89,236.50 × 43,114.04
4. Step 4: Simplify right side
   64,661.48x = 3,847,346,030.46
5. Step 5: Solve for x
   x = 3,847,346,030.46/64,661.48
6. Step 6: Final answer
   x = 59,499.81