Finding the Fourth Proportional to 42,813.72, 64,204.61 and 14,725.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,813.72 : 64,204.61 = 14,725.82 : x
2. Step 2: Convert to fraction form
   42,813.72/64,204.61 = 14,725.82/x
3. Step 3: Cross multiply
   42,813.72x = 64,204.61 × 14,725.82
4. Step 4: Simplify right side
   42,813.72x = 945,465,616.91
5. Step 5: Solve for x
   x = 945,465,616.91/42,813.72
6. Step 6: Final answer
   x = 22,083.24