Finding the Fourth Proportional to 104,061.05, 143,604.24 and 56,314.40

Step by Step Solution

1. Step 1: Write the proportion equation
   104,061.05 : 143,604.24 = 56,314.40 : x
2. Step 2: Convert to fraction form
   104,061.05/143,604.24 = 56,314.40/x
3. Step 3: Cross multiply
   104,061.05x = 143,604.24 × 56,314.40
4. Step 4: Simplify right side
   104,061.05x = 8,086,985,895.03
5. Step 5: Solve for x
   x = 8,086,985,895.03/104,061.05
6. Step 6: Final answer
   x = 77,713.86