Finding the Fourth Proportional to 62,721.63, 86,555.72 and 34,426.71

Step by Step Solution

1. Step 1: Write the proportion equation
   62,721.63 : 86,555.72 = 34,426.71 : x
2. Step 2: Convert to fraction form
   62,721.63/86,555.72 = 34,426.71/x
3. Step 3: Cross multiply
   62,721.63x = 86,555.72 × 34,426.71
4. Step 4: Simplify right side
   62,721.63x = 2,979,828,757.35
5. Step 5: Solve for x
   x = 2,979,828,757.35/62,721.63
6. Step 6: Final answer
   x = 47,508.79