Finding the Fourth Proportional to 163,978.24, 225,813.52 and 142,458.16

Step by Step Solution

1. Step 1: Write the proportion equation
   163,978.24 : 225,813.52 = 142,458.16 : x
2. Step 2: Convert to fraction form
   163,978.24/225,813.52 = 142,458.16/x
3. Step 3: Cross multiply
   163,978.24x = 225,813.52 × 142,458.16
4. Step 4: Simplify right side
   163,978.24x = 32,168,978,562.32
5. Step 5: Solve for x
   x = 32,168,978,562.32/163,978.24
6. Step 6: Final answer
   x = 196,178.34