Finding the Fourth Proportional to 216,196.47, 298,265.31 and 144,462.87

Step by Step Solution

1. Step 1: Write the proportion equation
   216,196.47 : 298,265.31 = 144,462.87 : x
2. Step 2: Convert to fraction form
   216,196.47/298,265.31 = 144,462.87/x
3. Step 3: Cross multiply
   216,196.47x = 298,265.31 × 144,462.87
4. Step 4: Simplify right side
   216,196.47x = 43,088,262,704.04
5. Step 5: Solve for x
   x = 43,088,262,704.04/216,196.47
6. Step 6: Final answer
   x = 199,301.42