Finding the Fourth Proportional to 55,962.78, 83,856.51 and 30,987.42

Step by Step Solution

1. Step 1: Write the proportion equation
   55,962.78 : 83,856.51 = 30,987.42 : x
2. Step 2: Convert to fraction form
   55,962.78/83,856.51 = 30,987.42/x
3. Step 3: Cross multiply
   55,962.78x = 83,856.51 × 30,987.42
4. Step 4: Simplify right side
   55,962.78x = 2,598,496,895.10
5. Step 5: Solve for x
   x = 2,598,496,895.10/55,962.78
6. Step 6: Final answer
   x = 46,432.59