Finding the Fourth Proportional to 57,916.54, 79,883.63 and 53,151.87

Step by Step Solution

1. Step 1: Write the proportion equation
   57,916.54 : 79,883.63 = 53,151.87 : x
2. Step 2: Convert to fraction form
   57,916.54/79,883.63 = 53,151.87/x
3. Step 3: Cross multiply
   57,916.54x = 79,883.63 × 53,151.87
4. Step 4: Simplify right side
   57,916.54x = 4,245,964,316.89
5. Step 5: Solve for x
   x = 4,245,964,316.89/57,916.54
6. Step 6: Final answer
   x = 73,311.77