Finding the Fourth Proportional to 42,026.27, 57,916.49 and 30,068.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,026.27 : 57,916.49 = 30,068.78 : x
2. Step 2: Convert to fraction form
   42,026.27/57,916.49 = 30,068.78/x
3. Step 3: Cross multiply
   42,026.27x = 57,916.49 × 30,068.78
4. Step 4: Simplify right side
   42,026.27x = 1,741,477,756.26
5. Step 5: Solve for x
   x = 1,741,477,756.26/42,026.27
6. Step 6: Final answer
   x = 41,437.84