Finding the Fourth Proportional to 62,664.72, 86,478.66 and 34,370.34

Step by Step Solution

1. Step 1: Write the proportion equation
   62,664.72 : 86,478.66 = 34,370.34 : x
2. Step 2: Convert to fraction form
   62,664.72/86,478.66 = 34,370.34/x
3. Step 3: Cross multiply
   62,664.72x = 86,478.66 × 34,370.34
4. Step 4: Simplify right side
   62,664.72x = 2,972,300,946.94
5. Step 5: Solve for x
   x = 2,972,300,946.94/62,664.72
6. Step 6: Final answer
   x = 47,431.81