Finding the Fourth Proportional to 67,303, 92,791.88 and 55,158.78

Step by Step Solution

1. Step 1: Write the proportion equation
   67,303 : 92,791.88 = 55,158.78 : x
2. Step 2: Convert to fraction form
   67,303/92,791.88 = 55,158.78/x
3. Step 3: Cross multiply
   67,303x = 92,791.88 × 55,158.78
4. Step 4: Simplify right side
   67,303x = 5,118,286,894.71
5. Step 5: Solve for x
   x = 5,118,286,894.71/67,303
6. Step 6: Final answer
   x = 76,048.42