Finding the Fourth Proportional to 57,128.56, 78,838.24 and 32,916.18

Step by Step Solution

1. Step 1: Write the proportion equation
   57,128.56 : 78,838.24 = 32,916.18 : x
2. Step 2: Convert to fraction form
   57,128.56/78,838.24 = 32,916.18/x
3. Step 3: Cross multiply
   57,128.56x = 78,838.24 × 32,916.18
4. Step 4: Simplify right side
   57,128.56x = 2,595,053,698.72
5. Step 5: Solve for x
   x = 2,595,053,698.72/57,128.56
6. Step 6: Final answer
   x = 45,424.81