Finding the Fourth Proportional to 83,781.75, 115,618.83 and 47,983.62

Step by Step Solution

1. Step 1: Write the proportion equation
   83,781.75 : 115,618.83 = 47,983.62 : x
2. Step 2: Convert to fraction form
   83,781.75/115,618.83 = 47,983.62/x
3. Step 3: Cross multiply
   83,781.75x = 115,618.83 × 47,983.62
4. Step 4: Simplify right side
   83,781.75x = 5,547,810,003.56
5. Step 5: Solve for x
   x = 5,547,810,003.56/83,781.75
6. Step 6: Final answer
   x = 66,217.40