Finding the Fourth Proportional to 64,641.68, 89,142.83 and 43,132.30

Step by Step Solution

1. Step 1: Write the proportion equation
   64,641.68 : 89,142.83 = 43,132.30 : x
2. Step 2: Convert to fraction form
   64,641.68/89,142.83 = 43,132.30/x
3. Step 3: Cross multiply
   64,641.68x = 89,142.83 × 43,132.30
4. Step 4: Simplify right side
   64,641.68x = 3,844,935,286.41
5. Step 5: Solve for x
   x = 3,844,935,286.41/64,641.68
6. Step 6: Final answer
   x = 59,480.75