Finding the Fourth Proportional to 67,301, 92,789.12 and 55,156.78

Step by Step Solution

1. Step 1: Write the proportion equation
   67,301 : 92,789.12 = 55,156.78 : x
2. Step 2: Convert to fraction form
   67,301/92,789.12 = 55,156.78/x
3. Step 3: Cross multiply
   67,301x = 92,789.12 × 55,156.78
4. Step 4: Simplify right side
   67,301x = 5,117,949,078.23
5. Step 5: Solve for x
   x = 5,117,949,078.23/67,301
6. Step 6: Final answer
   x = 76,045.66