Finding the Fourth Proportional to 83,493.12, 125,238.06 and 21,162

Step by Step Solution

1. Step 1: Write the proportion equation
   83,493.12 : 125,238.06 = 21,162 : x
2. Step 2: Convert to fraction form
   83,493.12/125,238.06 = 21,162/x
3. Step 3: Cross multiply
   83,493.12x = 125,238.06 × 21,162
4. Step 4: Simplify right side
   83,493.12x = 2,650,287,825.72
5. Step 5: Solve for x
   x = 2,650,287,825.72/83,493.12
6. Step 6: Final answer
   x = 31,742.59