Finding the Fourth Proportional to 42,826.56, 64,123.92 and 30,294.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,826.56 : 64,123.92 = 30,294.96 : x
2. Step 2: Convert to fraction form
   42,826.56/64,123.92 = 30,294.96/x
3. Step 3: Cross multiply
   42,826.56x = 64,123.92 × 30,294.96
4. Step 4: Simplify right side
   42,826.56x = 1,942,631,591.44
5. Step 5: Solve for x
   x = 1,942,631,591.44/42,826.56
6. Step 6: Final answer
   x = 45,360.44