Finding the Fourth Proportional to 498,654, 748,019.96 and 166,230

Step by Step Solution

1. Step 1: Write the proportion equation
   498,654 : 748,019.96 = 166,230 : x
2. Step 2: Convert to fraction form
   498,654/748,019.96 = 166,230/x
3. Step 3: Cross multiply
   498,654x = 748,019.96 × 166,230
4. Step 4: Simplify right side
   498,654x = 124,343,357,950.80
5. Step 5: Solve for x
   x = 124,343,357,950.80/498,654
6. Step 6: Final answer
   x = 249,357.99