Finding the Fourth Proportional to 308,527.88, 425,765.32 and 172,561.50

Step by Step Solution

1. Step 1: Write the proportion equation
   308,527.88 : 425,765.32 = 172,561.50 : x
2. Step 2: Convert to fraction form
   308,527.88/425,765.32 = 172,561.50/x
3. Step 3: Cross multiply
   308,527.88x = 425,765.32 × 172,561.50
4. Step 4: Simplify right side
   308,527.88x = 73,470,699,275.55
5. Step 5: Solve for x
   x = 73,470,699,275.55/308,527.88
6. Step 6: Final answer
   x = 238,133.10