Finding the Fourth Proportional to 200,458.51, 300,624.10 and 65,491.83

Step by Step Solution

1. Step 1: Write the proportion equation
   200,458.51 : 300,624.10 = 65,491.83 : x
2. Step 2: Convert to fraction form
   200,458.51/300,624.10 = 65,491.83/x
3. Step 3: Cross multiply
   200,458.51x = 300,624.10 × 65,491.83
4. Step 4: Simplify right side
   200,458.51x = 19,688,422,451.10
5. Step 5: Solve for x
   x = 19,688,422,451.10/200,458.51
6. Step 6: Final answer
   x = 98,216.94