Finding the Fourth Proportional to 48,619.42, 72,815.81 and 46,935.72

Step by Step Solution

1. Step 1: Write the proportion equation
   48,619.42 : 72,815.81 = 46,935.72 : x
2. Step 2: Convert to fraction form
   48,619.42/72,815.81 = 46,935.72/x
3. Step 3: Cross multiply
   48,619.42x = 72,815.81 × 46,935.72
4. Step 4: Simplify right side
   48,619.42x = 3,417,662,469.73
5. Step 5: Solve for x
   x = 3,417,662,469.73/48,619.42
6. Step 6: Final answer
   x = 70,294.18