Finding the Fourth Proportional to 60,826.72, 83,980.37 and 54,442.26

Step by Step Solution

1. Step 1: Write the proportion equation
   60,826.72 : 83,980.37 = 54,442.26 : x
2. Step 2: Convert to fraction form
   60,826.72/83,980.37 = 54,442.26/x
3. Step 3: Cross multiply
   60,826.72x = 83,980.37 × 54,442.26
4. Step 4: Simplify right side
   60,826.72x = 4,572,081,138.44
5. Step 5: Solve for x
   x = 4,572,081,138.44/60,826.72
6. Step 6: Final answer
   x = 75,165.67