Finding the Fourth Proportional to 42,864.71, 64,300.15 and 14,784.35

Step by Step Solution

1. Step 1: Write the proportion equation
   42,864.71 : 64,300.15 = 14,784.35 : x
2. Step 2: Convert to fraction form
   42,864.71/64,300.15 = 14,784.35/x
3. Step 3: Cross multiply
   42,864.71x = 64,300.15 × 14,784.35
4. Step 4: Simplify right side
   42,864.71x = 950,636,046.44
5. Step 5: Solve for x
   x = 950,636,046.44/42,864.71
6. Step 6: Final answer
   x = 22,177.59