Finding the Fourth Proportional to 117,422.72, 162,008.64 and 67,118.72

Step by Step Solution

1. Step 1: Write the proportion equation
   117,422.72 : 162,008.64 = 67,118.72 : x
2. Step 2: Convert to fraction form
   117,422.72/162,008.64 = 67,118.72/x
3. Step 3: Cross multiply
   117,422.72x = 162,008.64 × 67,118.72
4. Step 4: Simplify right side
   117,422.72x = 10,873,812,545.74
5. Step 5: Solve for x
   x = 10,873,812,545.74/117,422.72
6. Step 6: Final answer
   x = 92,603.99