Finding the Fourth Proportional to 60,801.30, 91,007.55 and 43,305.30

Step by Step Solution

1. Step 1: Write the proportion equation
   60,801.30 : 91,007.55 = 43,305.30 : x
2. Step 2: Convert to fraction form
   60,801.30/91,007.55 = 43,305.30/x
3. Step 3: Cross multiply
   60,801.30x = 91,007.55 × 43,305.30
4. Step 4: Simplify right side
   60,801.30x = 3,941,109,255.02
5. Step 5: Solve for x
   x = 3,941,109,255.02/60,801.30
6. Step 6: Final answer
   x = 64,819.49