Finding the Fourth Proportional to 80,688.37, 111,342.15 and 46,690.08

Step by Step Solution

1. Step 1: Write the proportion equation
   80,688.37 : 111,342.15 = 46,690.08 : x
2. Step 2: Convert to fraction form
   80,688.37/111,342.15 = 46,690.08/x
3. Step 3: Cross multiply
   80,688.37x = 111,342.15 × 46,690.08
4. Step 4: Simplify right side
   80,688.37x = 5,198,573,890.87
5. Step 5: Solve for x
   x = 5,198,573,890.87/80,688.37
6. Step 6: Final answer
   x = 64,427.80