Finding the Fourth Proportional to 82,268.16, 123,408 and 40,704

Step by Step Solution

1. Step 1: Write the proportion equation
   82,268.16 : 123,408 = 40,704 : x
2. Step 2: Convert to fraction form
   82,268.16/123,408 = 40,704/x
3. Step 3: Cross multiply
   82,268.16x = 123,408 × 40,704
4. Step 4: Simplify right side
   82,268.16x = 5,023,199,232
5. Step 5: Solve for x
   x = 5,023,199,232/82,268.16
6. Step 6: Final answer
   x = 61,058.85