Finding the Fourth Proportional to 142,656.96, 213,858.54 and 67,730.88

Step by Step Solution

1. Step 1: Write the proportion equation
   142,656.96 : 213,858.54 = 67,730.88 : x
2. Step 2: Convert to fraction form
   142,656.96/213,858.54 = 67,730.88/x
3. Step 3: Cross multiply
   142,656.96x = 213,858.54 × 67,730.88
4. Step 4: Simplify right side
   142,656.96x = 14,484,827,109.72
5. Step 5: Solve for x
   x = 14,484,827,109.72/142,656.96
6. Step 6: Final answer
   x = 101,536.07