Finding the Fourth Proportional to 304,978.76, 420,858.54 and 169,018.52

Step by Step Solution

1. Step 1: Write the proportion equation
   304,978.76 : 420,858.54 = 169,018.52 : x
2. Step 2: Convert to fraction form
   304,978.76/420,858.54 = 169,018.52/x
3. Step 3: Cross multiply
   304,978.76x = 420,858.54 × 169,018.52
4. Step 4: Simplify right side
   304,978.76x = 71,132,887,560.16
5. Step 5: Solve for x
   x = 71,132,887,560.16/304,978.76
6. Step 6: Final answer
   x = 233,238.82