Finding the Fourth Proportional to 78,864.98, 108,835.31 and 43,056.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,864.98 : 108,835.31 = 43,056.50 : x
2. Step 2: Convert to fraction form
   78,864.98/108,835.31 = 43,056.50/x
3. Step 3: Cross multiply
   78,864.98x = 108,835.31 × 43,056.50
4. Step 4: Simplify right side
   78,864.98x = 4,686,067,088.48
5. Step 5: Solve for x
   x = 4,686,067,088.48/78,864.98
6. Step 6: Final answer
   x = 59,418.86