Finding the Fourth Proportional to 103,913.94, 143,401.89 and 56,167.17

Step by Step Solution

1. Step 1: Write the proportion equation
   103,913.94 : 143,401.89 = 56,167.17 : x
2. Step 2: Convert to fraction form
   103,913.94/143,401.89 = 56,167.17/x
3. Step 3: Cross multiply
   103,913.94x = 143,401.89 × 56,167.17
4. Step 4: Simplify right side
   103,913.94x = 8,054,478,333.95
5. Step 5: Solve for x
   x = 8,054,478,333.95/103,913.94
6. Step 6: Final answer
   x = 77,511.05