Finding the Fourth Proportional to 83,694.79, 115,518.89 and 47,905.55

Step by Step Solution

1. Step 1: Write the proportion equation
   83,694.79 : 115,518.89 = 47,905.55 : x
2. Step 2: Convert to fraction form
   83,694.79/115,518.89 = 47,905.55/x
3. Step 3: Cross multiply
   83,694.79x = 115,518.89 × 47,905.55
4. Step 4: Simplify right side
   83,694.79x = 5,533,995,503.01
5. Step 5: Solve for x
   x = 5,533,995,503.01/83,694.79
6. Step 6: Final answer
   x = 66,121.15