Finding the Fourth Proportional to 199,592.58, 274,969.89 and 139,053.72

Step by Step Solution

1. Step 1: Write the proportion equation
   199,592.58 : 274,969.89 = 139,053.72 : x
2. Step 2: Convert to fraction form
   199,592.58/274,969.89 = 139,053.72/x
3. Step 3: Cross multiply
   199,592.58x = 274,969.89 × 139,053.72
4. Step 4: Simplify right side
   199,592.58x = 38,235,586,092.49
5. Step 5: Solve for x
   x = 38,235,586,092.49/199,592.58
6. Step 6: Final answer
   x = 191,568.17