Finding the Fourth Proportional to 51,916.02, 71,644.78 and 30,695.10

Step by Step Solution

1. Step 1: Write the proportion equation
   51,916.02 : 71,644.78 = 30,695.10 : x
2. Step 2: Convert to fraction form
   51,916.02/71,644.78 = 30,695.10/x
3. Step 3: Cross multiply
   51,916.02x = 71,644.78 × 30,695.10
4. Step 4: Simplify right side
   51,916.02x = 2,199,143,686.58
5. Step 5: Solve for x
   x = 2,199,143,686.58/51,916.02
6. Step 6: Final answer
   x = 42,359.64