Finding the Fourth Proportional to 154,155.50, 231,233.34 and 43,347.50

Step by Step Solution

1. Step 1: Write the proportion equation
   154,155.50 : 231,233.34 = 43,347.50 : x
2. Step 2: Convert to fraction form
   154,155.50/231,233.34 = 43,347.50/x
3. Step 3: Cross multiply
   154,155.50x = 231,233.34 × 43,347.50
4. Step 4: Simplify right side
   154,155.50x = 10,023,387,205.65
5. Step 5: Solve for x
   x = 10,023,387,205.65/154,155.50
6. Step 6: Final answer
   x = 65,021.28