Finding the Fourth Proportional to 151,417.89, 207,443.25 and 145,742.58

Step by Step Solution

1. Step 1: Write the proportion equation
   151,417.89 : 207,443.25 = 145,742.58 : x
2. Step 2: Convert to fraction form
   151,417.89/207,443.25 = 145,742.58/x
3. Step 3: Cross multiply
   151,417.89x = 207,443.25 × 145,742.58
4. Step 4: Simplify right side
   151,417.89x = 30,233,314,458.59
5. Step 5: Solve for x
   x = 30,233,314,458.59/151,417.89
6. Step 6: Final answer
   x = 199,668.05