Finding the Fourth Proportional to 151,418.89, 207,444.62 and 145,743.58

Step by Step Solution

1. Step 1: Write the proportion equation
   151,418.89 : 207,444.62 = 145,743.58 : x
2. Step 2: Convert to fraction form
   151,418.89/207,444.62 = 145,743.58/x
3. Step 3: Cross multiply
   151,418.89x = 207,444.62 × 145,743.58
4. Step 4: Simplify right side
   151,418.89x = 30,233,721,570.54
5. Step 5: Solve for x
   x = 30,233,721,570.54/151,418.89
6. Step 6: Final answer
   x = 199,669.42