Finding the Fourth Proportional to 83,405.54, 115,100.79 and 45,680.06

Step by Step Solution

1. Step 1: Write the proportion equation
   83,405.54 : 115,100.79 = 45,680.06 : x
2. Step 2: Convert to fraction form
   83,405.54/115,100.79 = 45,680.06/x
3. Step 3: Cross multiply
   83,405.54x = 115,100.79 × 45,680.06
4. Step 4: Simplify right side
   83,405.54x = 5,257,810,993.25
5. Step 5: Solve for x
   x = 5,257,810,993.25/83,405.54
6. Step 6: Final answer
   x = 63,039.11