Finding the Fourth Proportional to 119,919.98, 165,486.98 and 65,470.30

Step by Step Solution

1. Step 1: Write the proportion equation
   119,919.98 : 165,486.98 = 65,470.30 : x
2. Step 2: Convert to fraction form
   119,919.98/165,486.98 = 65,470.30/x
3. Step 3: Cross multiply
   119,919.98x = 165,486.98 × 65,470.30
4. Step 4: Simplify right side
   119,919.98x = 10,834,481,976.65
5. Step 5: Solve for x
   x = 10,834,481,976.65/119,919.98
6. Step 6: Final answer
   x = 90,347.59