Finding the Fourth Proportional to 258,485.09, 356,656.61 and 151,034.36

Step by Step Solution

1. Step 1: Write the proportion equation
   258,485.09 : 356,656.61 = 151,034.36 : x
2. Step 2: Convert to fraction form
   258,485.09/356,656.61 = 151,034.36/x
3. Step 3: Cross multiply
   258,485.09x = 356,656.61 × 151,034.36
4. Step 4: Simplify right side
   258,485.09x = 53,867,404,100.35
5. Step 5: Solve for x
   x = 53,867,404,100.35/258,485.09
6. Step 6: Final answer
   x = 208,396.56