Finding the Fourth Proportional to 57,128.63, 78,838.35 and 32,916.25

Step by Step Solution

1. Step 1: Write the proportion equation
   57,128.63 : 78,838.35 = 32,916.25 : x
2. Step 2: Convert to fraction form
   57,128.63/78,838.35 = 32,916.25/x
3. Step 3: Cross multiply
   57,128.63x = 78,838.35 × 32,916.25
4. Step 4: Simplify right side
   57,128.63x = 2,595,062,444.00
5. Step 5: Solve for x
   x = 2,595,062,444.00/57,128.63
6. Step 6: Final answer
   x = 45,424.90