Finding the Fourth Proportional to 116,987.28, 161,441.82 and 63,271.86

Step by Step Solution

1. Step 1: Write the proportion equation
   116,987.28 : 161,441.82 = 63,271.86 : x
2. Step 2: Convert to fraction form
   116,987.28/161,441.82 = 63,271.86/x
3. Step 3: Cross multiply
   116,987.28x = 161,441.82 × 63,271.86
4. Step 4: Simplify right side
   116,987.28x = 10,214,724,233.19
5. Step 5: Solve for x
   x = 10,214,724,233.19/116,987.28
6. Step 6: Final answer
   x = 87,314.83