Finding the Fourth Proportional to 55,131.32, 82,650.72 and 45,745.04

Step by Step Solution

1. Step 1: Write the proportion equation
   55,131.32 : 82,650.72 = 45,745.04 : x
2. Step 2: Convert to fraction form
   55,131.32/82,650.72 = 45,745.04/x
3. Step 3: Cross multiply
   55,131.32x = 82,650.72 × 45,745.04
4. Step 4: Simplify right side
   55,131.32x = 3,780,860,492.43
5. Step 5: Solve for x
   x = 3,780,860,492.43/55,131.32
6. Step 6: Final answer
   x = 68,579.18