Finding the Fourth Proportional to 70,898, 106,364.28 and 21,650

Step by Step Solution

1. Step 1: Write the proportion equation
   70,898 : 106,364.28 = 21,650 : x
2. Step 2: Convert to fraction form
   70,898/106,364.28 = 21,650/x
3. Step 3: Cross multiply
   70,898x = 106,364.28 × 21,650
4. Step 4: Simplify right side
   70,898x = 2,302,786,662
5. Step 5: Solve for x
   x = 2,302,786,662/70,898
6. Step 6: Final answer
   x = 32,480.28