Finding the Fourth Proportional to 128,046.83, 192,100.57 and 43,807.91

Step by Step Solution

1. Step 1: Write the proportion equation
   128,046.83 : 192,100.57 = 43,807.91 : x
2. Step 2: Convert to fraction form
   128,046.83/192,100.57 = 43,807.91/x
3. Step 3: Cross multiply
   128,046.83x = 192,100.57 × 43,807.91
4. Step 4: Simplify right side
   128,046.83x = 8,415,523,411.49
5. Step 5: Solve for x
   x = 8,415,523,411.49/128,046.83
6. Step 6: Final answer
   x = 65,722.23