Finding the Fourth Proportional to 308,790, 426,141.72 and 174,651.12

Step by Step Solution

1. Step 1: Write the proportion equation
   308,790 : 426,141.72 = 174,651.12 : x
2. Step 2: Convert to fraction form
   308,790/426,141.72 = 174,651.12/x
3. Step 3: Cross multiply
   308,790x = 426,141.72 × 174,651.12
4. Step 4: Simplify right side
   308,790x = 74,426,128,676.73
5. Step 5: Solve for x
   x = 74,426,128,676.73/308,790
6. Step 6: Final answer
   x = 241,025.06