Finding the Fourth Proportional to 102,016.41, 140,779.82 and 56,693.22

Step by Step Solution

1. Step 1: Write the proportion equation
   102,016.41 : 140,779.82 = 56,693.22 : x
2. Step 2: Convert to fraction form
   102,016.41/140,779.82 = 56,693.22/x
3. Step 3: Cross multiply
   102,016.41x = 140,779.82 × 56,693.22
4. Step 4: Simplify right side
   102,016.41x = 7,981,261,306.82
5. Step 5: Solve for x
   x = 7,981,261,306.82/102,016.41
6. Step 6: Final answer
   x = 78,235.07