Finding the Fourth Proportional to 253,100.72, 349,265.04 and 139,916

Step by Step Solution

1. Step 1: Write the proportion equation
   253,100.72 : 349,265.04 = 139,916 : x
2. Step 2: Convert to fraction form
   253,100.72/349,265.04 = 139,916/x
3. Step 3: Cross multiply
   253,100.72x = 349,265.04 × 139,916
4. Step 4: Simplify right side
   253,100.72x = 48,867,767,336.64
5. Step 5: Solve for x
   x = 48,867,767,336.64/253,100.72
6. Step 6: Final answer
   x = 193,076.37