Finding the Fourth Proportional to 199,504.62, 275,233.77 and 139,111.02

Step by Step Solution

1. Step 1: Write the proportion equation
   199,504.62 : 275,233.77 = 139,111.02 : x
2. Step 2: Convert to fraction form
   199,504.62/275,233.77 = 139,111.02/x
3. Step 3: Cross multiply
   199,504.62x = 275,233.77 × 139,111.02
4. Step 4: Simplify right side
   199,504.62x = 38,288,050,483.15
5. Step 5: Solve for x
   x = 38,288,050,483.15/199,504.62
6. Step 6: Final answer
   x = 191,915.61