Finding the Fourth Proportional to 164,019.20, 245,603.17 and 140,478.06

Step by Step Solution

1. Step 1: Write the proportion equation
   164,019.20 : 245,603.17 = 140,478.06 : x
2. Step 2: Convert to fraction form
   164,019.20/245,603.17 = 140,478.06/x
3. Step 3: Cross multiply
   164,019.20x = 245,603.17 × 140,478.06
4. Step 4: Simplify right side
   164,019.20x = 34,501,857,948.06
5. Step 5: Solve for x
   x = 34,501,857,948.06/164,019.20
6. Step 6: Final answer
   x = 210,352.56