Finding the Fourth Proportional to 218,978.32, 302,361.10 and 171,367.34

Step by Step Solution

1. Step 1: Write the proportion equation
   218,978.32 : 302,361.10 = 171,367.34 : x
2. Step 2: Convert to fraction form
   218,978.32/302,361.10 = 171,367.34/x
3. Step 3: Cross multiply
   218,978.32x = 302,361.10 × 171,367.34
4. Step 4: Simplify right side
   218,978.32x = 51,814,817,426.47
5. Step 5: Solve for x
   x = 51,814,817,426.47/218,978.32
6. Step 6: Final answer
   x = 236,620.76