Finding the Fourth Proportional to 43,976.61, 65,475.59 and 43,355.48

Step by Step Solution

1. Step 1: Write the proportion equation
   43,976.61 : 65,475.59 = 43,355.48 : x
2. Step 2: Convert to fraction form
   43,976.61/65,475.59 = 43,355.48/x
3. Step 3: Cross multiply
   43,976.61x = 65,475.59 × 43,355.48
4. Step 4: Simplify right side
   43,976.61x = 2,838,725,088.58
5. Step 5: Solve for x
   x = 2,838,725,088.58/43,976.61
6. Step 6: Final answer
   x = 64,550.79