Finding the Fourth Proportional to 55,061.28, 75,966.50 and 30,858.71

Step by Step Solution

1. Step 1: Write the proportion equation
   55,061.28 : 75,966.50 = 30,858.71 : x
2. Step 2: Convert to fraction form
   55,061.28/75,966.50 = 30,858.71/x
3. Step 3: Cross multiply
   55,061.28x = 75,966.50 × 30,858.71
4. Step 4: Simplify right side
   55,061.28x = 2,344,227,659.09
5. Step 5: Solve for x
   x = 2,344,227,659.09/55,061.28
6. Step 6: Final answer
   x = 42,574.88