Finding the Fourth Proportional to 89,875.76, 124,028.54 and 50,131.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,875.76 : 124,028.54 = 50,131.76 : x
2. Step 2: Convert to fraction form
   89,875.76/124,028.54 = 50,131.76/x
3. Step 3: Cross multiply
   89,875.76x = 124,028.54 × 50,131.76
4. Step 4: Simplify right side
   89,875.76x = 6,217,769,000.43
5. Step 5: Solve for x
   x = 6,217,769,000.43/89,875.76
6. Step 6: Final answer
   x = 69,181.82