Finding the Fourth Proportional to 151,749.37, 209,414.18 and 83,766.40

Step by Step Solution

1. Step 1: Write the proportion equation
   151,749.37 : 209,414.18 = 83,766.40 : x
2. Step 2: Convert to fraction form
   151,749.37/209,414.18 = 83,766.40/x
3. Step 3: Cross multiply
   151,749.37x = 209,414.18 × 83,766.40
4. Step 4: Simplify right side
   151,749.37x = 17,541,871,967.55
5. Step 5: Solve for x
   x = 17,541,871,967.55/151,749.37
6. Step 6: Final answer
   x = 115,597.66