Finding the Fourth Proportional to 123,870.08, 170,941.20 and 67,282.40

Step by Step Solution

1. Step 1: Write the proportion equation
   123,870.08 : 170,941.20 = 67,282.40 : x
2. Step 2: Convert to fraction form
   123,870.08/170,941.20 = 67,282.40/x
3. Step 3: Cross multiply
   123,870.08x = 170,941.20 × 67,282.40
4. Step 4: Simplify right side
   123,870.08x = 11,501,334,194.88
5. Step 5: Solve for x
   x = 11,501,334,194.88/123,870.08
6. Step 6: Final answer
   x = 92,849.98