Finding the Fourth Proportional to 139,074.42, 208,648.08 and 60,170.16

Step by Step Solution

1. Step 1: Write the proportion equation
   139,074.42 : 208,648.08 = 60,170.16 : x
2. Step 2: Convert to fraction form
   139,074.42/208,648.08 = 60,170.16/x
3. Step 3: Cross multiply
   139,074.42x = 208,648.08 × 60,170.16
4. Step 4: Simplify right side
   139,074.42x = 12,554,388,357.29
5. Step 5: Solve for x
   x = 12,554,388,357.29/139,074.42
6. Step 6: Final answer
   x = 90,271.01