Finding the Fourth Proportional to 57,185.72, 78,897.39 and 34,516.10

Step by Step Solution

1. Step 1: Write the proportion equation
   57,185.72 : 78,897.39 = 34,516.10 : x
2. Step 2: Convert to fraction form
   57,185.72/78,897.39 = 34,516.10/x
3. Step 3: Cross multiply
   57,185.72x = 78,897.39 × 34,516.10
4. Step 4: Simplify right side
   57,185.72x = 2,723,230,243.04
5. Step 5: Solve for x
   x = 2,723,230,243.04/57,185.72
6. Step 6: Final answer
   x = 47,620.81