Finding the Fourth Proportional to 237,501.69, 327,752.82 and 128,607.21

Step by Step Solution

1. Step 1: Write the proportion equation
   237,501.69 : 327,752.82 = 128,607.21 : x
2. Step 2: Convert to fraction form
   237,501.69/327,752.82 = 128,607.21/x
3. Step 3: Cross multiply
   237,501.69x = 327,752.82 × 128,607.21
4. Step 4: Simplify right side
   237,501.69x = 42,151,375,749.83
5. Step 5: Solve for x
   x = 42,151,375,749.83/237,501.69
6. Step 6: Final answer
   x = 177,478.21