Finding the Fourth Proportional to 67,008.47, 92,378.27 and 54,866.57

Step by Step Solution

1. Step 1: Write the proportion equation
   67,008.47 : 92,378.27 = 54,866.57 : x
2. Step 2: Convert to fraction form
   67,008.47/92,378.27 = 54,866.57/x
3. Step 3: Cross multiply
   67,008.47x = 92,378.27 × 54,866.57
4. Step 4: Simplify right side
   67,008.47x = 5,068,478,492.71
5. Step 5: Solve for x
   x = 5,068,478,492.71/67,008.47
6. Step 6: Final answer
   x = 75,639.38