Finding the Fourth Proportional to 52,916.72, 79,253.31 and 30,675.20

Step by Step Solution

1. Step 1: Write the proportion equation
   52,916.72 : 79,253.31 = 30,675.20 : x
2. Step 2: Convert to fraction form
   52,916.72/79,253.31 = 30,675.20/x
3. Step 3: Cross multiply
   52,916.72x = 79,253.31 × 30,675.20
4. Step 4: Simplify right side
   52,916.72x = 2,431,111,134.91
5. Step 5: Solve for x
   x = 2,431,111,134.91/52,916.72
6. Step 6: Final answer
   x = 45,942.21