Finding the Fourth Proportional to 83,923.12, 115,787.82 and 47,618.56

Step by Step Solution

1. Step 1: Write the proportion equation
   83,923.12 : 115,787.82 = 47,618.56 : x
2. Step 2: Convert to fraction form
   83,923.12/115,787.82 = 47,618.56/x
3. Step 3: Cross multiply
   83,923.12x = 115,787.82 × 47,618.56
4. Step 4: Simplify right side
   83,923.12x = 5,513,649,253.94
5. Step 5: Solve for x
   x = 5,513,649,253.94/83,923.12
6. Step 6: Final answer
   x = 65,698.81