Finding the Fourth Proportional to 233,139.72, 321,849 and 152,690.52

Step by Step Solution

1. Step 1: Write the proportion equation
   233,139.72 : 321,849 = 152,690.52 : x
2. Step 2: Convert to fraction form
   233,139.72/321,849 = 152,690.52/x
3. Step 3: Cross multiply
   233,139.72x = 321,849 × 152,690.52
4. Step 4: Simplify right side
   233,139.72x = 49,143,291,171.48
5. Step 5: Solve for x
   x = 49,143,291,171.48/233,139.72
6. Step 6: Final answer
   x = 210,789.01