Finding the Fourth Proportional to 142,557.77, 196,407.10 and 117,023.69

Step by Step Solution

1. Step 1: Write the proportion equation
   142,557.77 : 196,407.10 = 117,023.69 : x
2. Step 2: Convert to fraction form
   142,557.77/196,407.10 = 117,023.69/x
3. Step 3: Cross multiply
   142,557.77x = 196,407.10 × 117,023.69
4. Step 4: Simplify right side
   142,557.77x = 22,984,283,116.71
5. Step 5: Solve for x
   x = 22,984,283,116.71/142,557.77
6. Step 6: Final answer
   x = 161,227.86