Finding the Fourth Proportional to 49,642.95, 68,508.57 and 28,429.05

Step by Step Solution

1. Step 1: Write the proportion equation
   49,642.95 : 68,508.57 = 28,429.05 : x
2. Step 2: Convert to fraction form
   49,642.95/68,508.57 = 28,429.05/x
3. Step 3: Cross multiply
   49,642.95x = 68,508.57 × 28,429.05
4. Step 4: Simplify right side
   49,642.95x = 1,947,633,561.96
5. Step 5: Solve for x
   x = 1,947,633,561.96/49,642.95
6. Step 6: Final answer
   x = 39,232.83