Finding the Fourth Proportional to 67,477.55, 92,443.82 and 64,954.31

Step by Step Solution

1. Step 1: Write the proportion equation
   67,477.55 : 92,443.82 = 64,954.31 : x
2. Step 2: Convert to fraction form
   67,477.55/92,443.82 = 64,954.31/x
3. Step 3: Cross multiply
   67,477.55x = 92,443.82 × 64,954.31
4. Step 4: Simplify right side
   67,477.55x = 6,004,623,754.87
5. Step 5: Solve for x
   x = 6,004,623,754.87/67,477.55
6. Step 6: Final answer
   x = 88,986.99