Finding the Fourth Proportional to 151,386.03, 207,399.83 and 145,710.63

Step by Step Solution

1. Step 1: Write the proportion equation
   151,386.03 : 207,399.83 = 145,710.63 : x
2. Step 2: Convert to fraction form
   151,386.03/207,399.83 = 145,710.63/x
3. Step 3: Cross multiply
   151,386.03x = 207,399.83 × 145,710.63
4. Step 4: Simplify right side
   151,386.03x = 30,220,359,162.64
5. Step 5: Solve for x
   x = 30,220,359,162.64/151,386.03
6. Step 6: Final answer
   x = 199,624.49