Finding the Fourth Proportional to 216,046.65, 298,099.86 and 124,148.18

Step by Step Solution

1. Step 1: Write the proportion equation
   216,046.65 : 298,099.86 = 124,148.18 : x
2. Step 2: Convert to fraction form
   216,046.65/298,099.86 = 124,148.18/x
3. Step 3: Cross multiply
   216,046.65x = 298,099.86 × 124,148.18
4. Step 4: Simplify right side
   216,046.65x = 37,008,555,897.96
5. Step 5: Solve for x
   x = 37,008,555,897.96/216,046.65
6. Step 6: Final answer
   x = 171,298.91