Finding the Fourth Proportional to 253,027.89, 349,200.72 and 139,872.51

Step by Step Solution

1. Step 1: Write the proportion equation
   253,027.89 : 349,200.72 = 139,872.51 : x
2. Step 2: Convert to fraction form
   253,027.89/349,200.72 = 139,872.51/x
3. Step 3: Cross multiply
   253,027.89x = 349,200.72 × 139,872.51
4. Step 4: Simplify right side
   253,027.89x = 48,843,581,200.21
5. Step 5: Solve for x
   x = 48,843,581,200.21/253,027.89
6. Step 6: Final answer
   x = 193,036.35