Finding the Fourth Proportional to 256,087.94, 353,399.34 and 148,667.96

Step by Step Solution

1. Step 1: Write the proportion equation
   256,087.94 : 353,399.34 = 148,667.96 : x
2. Step 2: Convert to fraction form
   256,087.94/353,399.34 = 148,667.96/x
3. Step 3: Cross multiply
   256,087.94x = 353,399.34 × 148,667.96
4. Step 4: Simplify right side
   256,087.94x = 52,539,158,943.15
5. Step 5: Solve for x
   x = 52,539,158,943.15/256,087.94
6. Step 6: Final answer
   x = 205,160.61