Finding the Fourth Proportional to 162,499.23, 243,833.84 and 66,507.69

Step by Step Solution

1. Step 1: Write the proportion equation
   162,499.23 : 243,833.84 = 66,507.69 : x
2. Step 2: Convert to fraction form
   162,499.23/243,833.84 = 66,507.69/x
3. Step 3: Cross multiply
   162,499.23x = 243,833.84 × 66,507.69
4. Step 4: Simplify right side
   162,499.23x = 16,216,825,109.69
5. Step 5: Solve for x
   x = 16,216,825,109.69/162,499.23
6. Step 6: Final answer
   x = 99,796.32