Finding the Fourth Proportional to 67,393.02, 92,328.30 and 64,869.46

Step by Step Solution

1. Step 1: Write the proportion equation
   67,393.02 : 92,328.30 = 64,869.46 : x
2. Step 2: Convert to fraction form
   67,393.02/92,328.30 = 64,869.46/x
3. Step 3: Cross multiply
   67,393.02x = 92,328.30 × 64,869.46
4. Step 4: Simplify right side
   67,393.02x = 5,989,286,963.72
5. Step 5: Solve for x
   x = 5,989,286,963.72/67,393.02
6. Step 6: Final answer
   x = 88,871.03