Finding the Fourth Proportional to 78,371.67, 108,185.99 and 52,912.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,371.67 : 108,185.99 = 52,912.50 : x
2. Step 2: Convert to fraction form
   78,371.67/108,185.99 = 52,912.50/x
3. Step 3: Cross multiply
   78,371.67x = 108,185.99 × 52,912.50
4. Step 4: Simplify right side
   78,371.67x = 5,724,391,195.88
5. Step 5: Solve for x
   x = 5,724,391,195.88/78,371.67
6. Step 6: Final answer
   x = 73,041.59