Finding the Fourth Proportional to 55,093.43, 82,670.14 and 42,637.79

Step by Step Solution

1. Step 1: Write the proportion equation
   55,093.43 : 82,670.14 = 42,637.79 : x
2. Step 2: Convert to fraction form
   55,093.43/82,670.14 = 42,637.79/x
3. Step 3: Cross multiply
   55,093.43x = 82,670.14 × 42,637.79
4. Step 4: Simplify right side
   55,093.43x = 3,524,871,655.52
5. Step 5: Solve for x
   x = 3,524,871,655.52/55,093.43
6. Step 6: Final answer
   x = 63,979.89