Finding the Fourth Proportional to 199,002.85, 274,156.86 and 138,469.39

Step by Step Solution

1. Step 1: Write the proportion equation
   199,002.85 : 274,156.86 = 138,469.39 : x
2. Step 2: Convert to fraction form
   199,002.85/274,156.86 = 138,469.39/x
3. Step 3: Cross multiply
   199,002.85x = 274,156.86 × 138,469.39
4. Step 4: Simplify right side
   199,002.85x = 37,962,333,168.52
5. Step 5: Solve for x
   x = 37,962,333,168.52/199,002.85
6. Step 6: Final answer
   x = 190,762.76