Finding the Fourth Proportional to 142,040.21, 195,856.55 and 116,117.86

Step by Step Solution

1. Step 1: Write the proportion equation
   142,040.21 : 195,856.55 = 116,117.86 : x
2. Step 2: Convert to fraction form
   142,040.21/195,856.55 = 116,117.86/x
3. Step 3: Cross multiply
   142,040.21x = 195,856.55 × 116,117.86
4. Step 4: Simplify right side
   142,040.21x = 22,742,442,995.27
5. Step 5: Solve for x
   x = 22,742,442,995.27/142,040.21
6. Step 6: Final answer
   x = 160,112.71