Finding the Fourth Proportional to 83,790.50, 115,618.86 and 49,314.74

Step by Step Solution

1. Step 1: Write the proportion equation
   83,790.50 : 115,618.86 = 49,314.74 : x
2. Step 2: Convert to fraction form
   83,790.50/115,618.86 = 49,314.74/x
3. Step 3: Cross multiply
   83,790.50x = 115,618.86 × 49,314.74
4. Step 4: Simplify right side
   83,790.50x = 5,701,713,441.90
5. Step 5: Solve for x
   x = 5,701,713,441.90/83,790.50
6. Step 6: Final answer
   x = 68,047.25