Finding the Fourth Proportional to 42,826.31, 64,223.49 and 14,738.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,826.31 : 64,223.49 = 14,738.42 : x
2. Step 2: Convert to fraction form
   42,826.31/64,223.49 = 14,738.42/x
3. Step 3: Cross multiply
   42,826.31x = 64,223.49 × 14,738.42
4. Step 4: Simplify right side
   42,826.31x = 946,552,769.49
5. Step 5: Solve for x
   x = 946,552,769.49/42,826.31
6. Step 6: Final answer
   x = 22,102.13