Finding the Fourth Proportional to 55,856.72, 83,655.60 and 55,442

Step by Step Solution

1. Step 1: Write the proportion equation
   55,856.72 : 83,655.60 = 55,442 : x
2. Step 2: Convert to fraction form
   55,856.72/83,655.60 = 55,442/x
3. Step 3: Cross multiply
   55,856.72x = 83,655.60 × 55,442
4. Step 4: Simplify right side
   55,856.72x = 4,638,033,775.20
5. Step 5: Solve for x
   x = 4,638,033,775.20/55,856.72
6. Step 6: Final answer
   x = 83,034.48