Finding the Fourth Proportional to 80,415, 110,972.79 and 46,887.48

Step by Step Solution

1. Step 1: Write the proportion equation
   80,415 : 110,972.79 = 46,887.48 : x
2. Step 2: Convert to fraction form
   80,415/110,972.79 = 46,887.48/x
3. Step 3: Cross multiply
   80,415x = 110,972.79 × 46,887.48
4. Step 4: Simplify right side
   80,415x = 5,203,234,471.67
5. Step 5: Solve for x
   x = 5,203,234,471.67/80,415
6. Step 6: Final answer
   x = 64,704.77