Finding the Fourth Proportional to 55,685.56, 76,845.96 and 30,535

Step by Step Solution

1. Step 1: Write the proportion equation
   55,685.56 : 76,845.96 = 30,535 : x
2. Step 2: Convert to fraction form
   55,685.56/76,845.96 = 30,535/x
3. Step 3: Cross multiply
   55,685.56x = 76,845.96 × 30,535
4. Step 4: Simplify right side
   55,685.56x = 2,346,491,388.60
5. Step 5: Solve for x
   x = 2,346,491,388.60/55,685.56
6. Step 6: Final answer
   x = 42,138.24