Finding the Fourth Proportional to 67,143.98, 92,608.34 and 64,166.06

Step by Step Solution

1. Step 1: Write the proportion equation
   67,143.98 : 92,608.34 = 64,166.06 : x
2. Step 2: Convert to fraction form
   67,143.98/92,608.34 = 64,166.06/x
3. Step 3: Cross multiply
   67,143.98x = 92,608.34 × 64,166.06
4. Step 4: Simplify right side
   67,143.98x = 5,942,312,300.94
5. Step 5: Solve for x
   x = 5,942,312,300.94/67,143.98
6. Step 6: Final answer
   x = 88,501.04