Finding the Fourth Proportional to 254,457, 351,150.72 and 141,280.56

Step by Step Solution

1. Step 1: Write the proportion equation
   254,457 : 351,150.72 = 141,280.56 : x
2. Step 2: Convert to fraction form
   254,457/351,150.72 = 141,280.56/x
3. Step 3: Cross multiply
   254,457x = 351,150.72 × 141,280.56
4. Step 4: Simplify right side
   254,457x = 49,610,770,366.00
5. Step 5: Solve for x
   x = 49,610,770,366.00/254,457
6. Step 6: Final answer
   x = 194,967.21