Finding the Fourth Proportional to 146,015.31, 219,049.98 and 46,200.63

Step by Step Solution

1. Step 1: Write the proportion equation
   146,015.31 : 219,049.98 = 46,200.63 : x
2. Step 2: Convert to fraction form
   146,015.31/219,049.98 = 46,200.63/x
3. Step 3: Cross multiply
   146,015.31x = 219,049.98 × 46,200.63
4. Step 4: Simplify right side
   146,015.31x = 10,120,247,077.49
5. Step 5: Solve for x
   x = 10,120,247,077.49/146,015.31
6. Step 6: Final answer
   x = 69,309.49