Finding the Fourth Proportional to 49,861.80, 74,500.72 and 48,117.68

Step by Step Solution

1. Step 1: Write the proportion equation
   49,861.80 : 74,500.72 = 48,117.68 : x
2. Step 2: Convert to fraction form
   49,861.80/74,500.72 = 48,117.68/x
3. Step 3: Cross multiply
   49,861.80x = 74,500.72 × 48,117.68
4. Step 4: Simplify right side
   49,861.80x = 3,584,801,804.73
5. Step 5: Solve for x
   x = 3,584,801,804.73/49,861.80
6. Step 6: Final answer
   x = 71,894.75