Finding the Fourth Proportional to 49,089.29, 67,732.74 and 28,938.83

Step by Step Solution

1. Step 1: Write the proportion equation
   49,089.29 : 67,732.74 = 28,938.83 : x
2. Step 2: Convert to fraction form
   49,089.29/67,732.74 = 28,938.83/x
3. Step 3: Cross multiply
   49,089.29x = 67,732.74 × 28,938.83
4. Step 4: Simplify right side
   49,089.29x = 1,960,105,909.63
5. Step 5: Solve for x
   x = 1,960,105,909.63/49,089.29
6. Step 6: Final answer
   x = 39,929.40