Finding the Fourth Proportional to 39,970.50, 55,159.37 and 22,065.53

Step by Step Solution

1. Step 1: Write the proportion equation
   39,970.50 : 55,159.37 = 22,065.53 : x
2. Step 2: Convert to fraction form
   39,970.50/55,159.37 = 22,065.53/x
3. Step 3: Cross multiply
   39,970.50x = 55,159.37 × 22,065.53
4. Step 4: Simplify right side
   39,970.50x = 1,217,120,347.39
5. Step 5: Solve for x
   x = 1,217,120,347.39/39,970.50
6. Step 6: Final answer
   x = 30,450.47