Finding the Fourth Proportional to 49,369.71, 68,128.50 and 28,155.81

Step by Step Solution

1. Step 1: Write the proportion equation
   49,369.71 : 68,128.50 = 28,155.81 : x
2. Step 2: Convert to fraction form
   49,369.71/68,128.50 = 28,155.81/x
3. Step 3: Cross multiply
   49,369.71x = 68,128.50 × 28,155.81
4. Step 4: Simplify right side
   49,369.71x = 1,918,213,101.59
5. Step 5: Solve for x
   x = 1,918,213,101.59/49,369.71
6. Step 6: Final answer
   x = 38,854.05