Finding the Fourth Proportional to 117,539.64, 162,251 and 79,321.82

Step by Step Solution

1. Step 1: Write the proportion equation
   117,539.64 : 162,251 = 79,321.82 : x
2. Step 2: Convert to fraction form
   117,539.64/162,251 = 79,321.82/x
3. Step 3: Cross multiply
   117,539.64x = 162,251 × 79,321.82
4. Step 4: Simplify right side
   117,539.64x = 12,870,044,616.82
5. Step 5: Solve for x
   x = 12,870,044,616.82/117,539.64
6. Step 6: Final answer
   x = 109,495.36