Finding the Fourth Proportional to 50,111.76, 69,154.08 and 28,890.84

Step by Step Solution

1. Step 1: Write the proportion equation
   50,111.76 : 69,154.08 = 28,890.84 : x
2. Step 2: Convert to fraction form
   50,111.76/69,154.08 = 28,890.84/x
3. Step 3: Cross multiply
   50,111.76x = 69,154.08 × 28,890.84
4. Step 4: Simplify right side
   50,111.76x = 1,997,919,460.63
5. Step 5: Solve for x
   x = 1,997,919,460.63/50,111.76
6. Step 6: Final answer
   x = 39,869.27