Finding the Fourth Proportional to 5,055.50, 7,578.05 and 1,934.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,055.50 : 7,578.05 = 1,934.78 : x
2. Step 2: Convert to fraction form
   5,055.50/7,578.05 = 1,934.78/x
3. Step 3: Cross multiply
   5,055.50x = 7,578.05 × 1,934.78
4. Step 4: Simplify right side
   5,055.50x = 14,661,812.01
5. Step 5: Solve for x
   x = 14,661,812.01/5,055.50
6. Step 6: Final answer
   x = 2,900.17