Finding the Fourth Proportional to 112,931.36, 169,498.56 and 82,983.68

Step by Step Solution

1. Step 1: Write the proportion equation
   112,931.36 : 169,498.56 = 82,983.68 : x
2. Step 2: Convert to fraction form
   112,931.36/169,498.56 = 82,983.68/x
3. Step 3: Cross multiply
   112,931.36x = 169,498.56 × 82,983.68
4. Step 4: Simplify right side
   112,931.36x = 14,065,614,263.50
5. Step 5: Solve for x
   x = 14,065,614,263.50/112,931.36
6. Step 6: Final answer
   x = 124,550.12