Finding the Fourth Proportional to 117,667.53, 162,383.67 and 72,371.12

Step by Step Solution

1. Step 1: Write the proportion equation
   117,667.53 : 162,383.67 = 72,371.12 : x
2. Step 2: Convert to fraction form
   117,667.53/162,383.67 = 72,371.12/x
3. Step 3: Cross multiply
   117,667.53x = 162,383.67 × 72,371.12
4. Step 4: Simplify right side
   117,667.53x = 11,751,887,255.69
5. Step 5: Solve for x
   x = 11,751,887,255.69/117,667.53
6. Step 6: Final answer
   x = 99,873.66