Finding the Fourth Proportional to 637,061.12, 955,679.52 and 216,224

Step by Step Solution

1. Step 1: Write the proportion equation
   637,061.12 : 955,679.52 = 216,224 : x
2. Step 2: Convert to fraction form
   637,061.12/955,679.52 = 216,224/x
3. Step 3: Cross multiply
   637,061.12x = 955,679.52 × 216,224
4. Step 4: Simplify right side
   637,061.12x = 206,640,848,532.48
5. Step 5: Solve for x
   x = 206,640,848,532.48/637,061.12
6. Step 6: Final answer
   x = 324,365.81