Finding the Fourth Proportional to 105,697.50, 158,462.61 and 52,351.71

Step by Step Solution

1. Step 1: Write the proportion equation
   105,697.50 : 158,462.61 = 52,351.71 : x
2. Step 2: Convert to fraction form
   105,697.50/158,462.61 = 52,351.71/x
3. Step 3: Cross multiply
   105,697.50x = 158,462.61 × 52,351.71
4. Step 4: Simplify right side
   105,697.50x = 8,295,788,604.56
5. Step 5: Solve for x
   x = 8,295,788,604.56/105,697.50
6. Step 6: Final answer
   x = 78,486.14