Finding the Fourth Proportional to 43,233, 64,765.59 and 28,396.90

Step by Step Solution

1. Step 1: Write the proportion equation
   43,233 : 64,765.59 = 28,396.90 : x
2. Step 2: Convert to fraction form
   43,233/64,765.59 = 28,396.90/x
3. Step 3: Cross multiply
   43,233x = 64,765.59 × 28,396.90
4. Step 4: Simplify right side
   43,233x = 1,839,141,982.67
5. Step 5: Solve for x
   x = 1,839,141,982.67/43,233
6. Step 6: Final answer
   x = 42,540.24