Finding the Fourth Proportional to 154,041.98, 212,556.89 and 86,050.55

Step by Step Solution

1. Step 1: Write the proportion equation
   154,041.98 : 212,556.89 = 86,050.55 : x
2. Step 2: Convert to fraction form
   154,041.98/212,556.89 = 86,050.55/x
3. Step 3: Cross multiply
   154,041.98x = 212,556.89 × 86,050.55
4. Step 4: Simplify right side
   154,041.98x = 18,290,637,290.79
5. Step 5: Solve for x
   x = 18,290,637,290.79/154,041.98
6. Step 6: Final answer
   x = 118,738.00