Finding the Fourth Proportional to 83,272, 124,898.82 and 20,942.50

Step by Step Solution

1. Step 1: Write the proportion equation
   83,272 : 124,898.82 = 20,942.50 : x
2. Step 2: Convert to fraction form
   83,272/124,898.82 = 20,942.50/x
3. Step 3: Cross multiply
   83,272x = 124,898.82 × 20,942.50
4. Step 4: Simplify right side
   83,272x = 2,615,693,537.85
5. Step 5: Solve for x
   x = 2,615,693,537.85/83,272
6. Step 6: Final answer
   x = 31,411.44