Finding the Fourth Proportional to 49,051.88, 67,693.81 and 28,909.61

Step by Step Solution

1. Step 1: Write the proportion equation
   49,051.88 : 67,693.81 = 28,909.61 : x
2. Step 2: Convert to fraction form
   49,051.88/67,693.81 = 28,909.61/x
3. Step 3: Cross multiply
   49,051.88x = 67,693.81 × 28,909.61
4. Step 4: Simplify right side
   49,051.88x = 1,957,001,308.05
5. Step 5: Solve for x
   x = 1,957,001,308.05/49,051.88
6. Step 6: Final answer
   x = 39,896.56