Finding the Fourth Proportional to 67,300.50, 92,788.43 and 55,156.28

Step by Step Solution

1. Step 1: Write the proportion equation
   67,300.50 : 92,788.43 = 55,156.28 : x
2. Step 2: Convert to fraction form
   67,300.50/92,788.43 = 55,156.28/x
3. Step 3: Cross multiply
   67,300.50x = 92,788.43 × 55,156.28
4. Step 4: Simplify right side
   67,300.50x = 5,117,864,625.84
5. Step 5: Solve for x
   x = 5,117,864,625.84/67,300.50
6. Step 6: Final answer
   x = 76,044.97