Finding the Fourth Proportional to 55,090.64, 82,935.76 and 50,191.76

Step by Step Solution

1. Step 1: Write the proportion equation
   55,090.64 : 82,935.76 = 50,191.76 : x
2. Step 2: Convert to fraction form
   55,090.64/82,935.76 = 50,191.76/x
3. Step 3: Cross multiply
   55,090.64x = 82,935.76 × 50,191.76
4. Step 4: Simplify right side
   55,090.64x = 4,162,691,761.34
5. Step 5: Solve for x
   x = 4,162,691,761.34/55,090.64
6. Step 6: Final answer
   x = 75,560.78