Finding the Fourth Proportional to 46,378.88, 69,444.72 and 31,616.72

Step by Step Solution

1. Step 1: Write the proportion equation
   46,378.88 : 69,444.72 = 31,616.72 : x
2. Step 2: Convert to fraction form
   46,378.88/69,444.72 = 31,616.72/x
3. Step 3: Cross multiply
   46,378.88x = 69,444.72 × 31,616.72
4. Step 4: Simplify right side
   46,378.88x = 2,195,614,267.72
5. Step 5: Solve for x
   x = 2,195,614,267.72/46,378.88
6. Step 6: Final answer
   x = 47,340.82