Finding the Fourth Proportional to 105,781.98, 158,699.23 and 52,498.96

Step by Step Solution

1. Step 1: Write the proportion equation
   105,781.98 : 158,699.23 = 52,498.96 : x
2. Step 2: Convert to fraction form
   105,781.98/158,699.23 = 52,498.96/x
3. Step 3: Cross multiply
   105,781.98x = 158,699.23 × 52,498.96
4. Step 4: Simplify right side
   105,781.98x = 8,331,544,265.31
5. Step 5: Solve for x
   x = 8,331,544,265.31/105,781.98
6. Step 6: Final answer
   x = 78,761.47