Finding the Fourth Proportional to 83,641.07, 115,391.83 and 47,811.86

Step by Step Solution

1. Step 1: Write the proportion equation
   83,641.07 : 115,391.83 = 47,811.86 : x
2. Step 2: Convert to fraction form
   83,641.07/115,391.83 = 47,811.86/x
3. Step 3: Cross multiply
   83,641.07x = 115,391.83 × 47,811.86
4. Step 4: Simplify right side
   83,641.07x = 5,517,098,021.10
5. Step 5: Solve for x
   x = 5,517,098,021.10/83,641.07
6. Step 6: Final answer
   x = 65,961.59