Finding the Fourth Proportional to 103,808.46, 143,255.69 and 56,061.82

Step by Step Solution

1. Step 1: Write the proportion equation
   103,808.46 : 143,255.69 = 56,061.82 : x
2. Step 2: Convert to fraction form
   103,808.46/143,255.69 = 56,061.82/x
3. Step 3: Cross multiply
   103,808.46x = 143,255.69 × 56,061.82
4. Step 4: Simplify right side
   103,808.46x = 8,031,174,815.75
5. Step 5: Solve for x
   x = 8,031,174,815.75/103,808.46
6. Step 6: Final answer
   x = 77,365.32