Finding the Fourth Proportional to 57,088.05, 78,769.71 and 39,176.52

Step by Step Solution

1. Step 1: Write the proportion equation
   57,088.05 : 78,769.71 = 39,176.52 : x
2. Step 2: Convert to fraction form
   57,088.05/78,769.71 = 39,176.52/x
3. Step 3: Cross multiply
   57,088.05x = 78,769.71 × 39,176.52
4. Step 4: Simplify right side
   57,088.05x = 3,085,923,119.21
5. Step 5: Solve for x
   x = 3,085,923,119.21/57,088.05
6. Step 6: Final answer
   x = 54,055.50