Finding the Fourth Proportional to 164,215.16, 226,530.86 and 142,656.50

Step by Step Solution

1. Step 1: Write the proportion equation
   164,215.16 : 226,530.86 = 142,656.50 : x
2. Step 2: Convert to fraction form
   164,215.16/226,530.86 = 142,656.50/x
3. Step 3: Cross multiply
   164,215.16x = 226,530.86 × 142,656.50
4. Step 4: Simplify right side
   164,215.16x = 32,316,099,629.59
5. Step 5: Solve for x
   x = 32,316,099,629.59/164,215.16
6. Step 6: Final answer
   x = 196,791.21