Finding the Fourth Proportional to 42,943.37, 64,399.25 and 14,856.21

Step by Step Solution

1. Step 1: Write the proportion equation
   42,943.37 : 64,399.25 = 14,856.21 : x
2. Step 2: Convert to fraction form
   42,943.37/64,399.25 = 14,856.21/x
3. Step 3: Cross multiply
   42,943.37x = 64,399.25 × 14,856.21
4. Step 4: Simplify right side
   42,943.37x = 956,728,818.98
5. Step 5: Solve for x
   x = 956,728,818.98/42,943.37
6. Step 6: Final answer
   x = 22,278.85