Finding the Fourth Proportional to 49,893.62, 74,800.69 and 28,809.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,893.62 : 74,800.69 = 28,809.72 : x
2. Step 2: Convert to fraction form
   49,893.62/74,800.69 = 28,809.72/x
3. Step 3: Cross multiply
   49,893.62x = 74,800.69 × 28,809.72
4. Step 4: Simplify right side
   49,893.62x = 2,154,986,934.71
5. Step 5: Solve for x
   x = 2,154,986,934.71/49,893.62
6. Step 6: Final answer
   x = 43,191.63