Finding the Fourth Proportional to 62,783.72, 86,642.76 and 34,490.48

Step by Step Solution

1. Step 1: Write the proportion equation
   62,783.72 : 86,642.76 = 34,490.48 : x
2. Step 2: Convert to fraction form
   62,783.72/86,642.76 = 34,490.48/x
3. Step 3: Cross multiply
   62,783.72x = 86,642.76 × 34,490.48
4. Step 4: Simplify right side
   62,783.72x = 2,988,350,380.92
5. Step 5: Solve for x
   x = 2,988,350,380.92/62,783.72
6. Step 6: Final answer
   x = 47,597.54