Finding the Fourth Proportional to 117,877.86, 162,675 and 72,581.99

Step by Step Solution

1. Step 1: Write the proportion equation
   117,877.86 : 162,675 = 72,581.99 : x
2. Step 2: Convert to fraction form
   117,877.86/162,675 = 72,581.99/x
3. Step 3: Cross multiply
   117,877.86x = 162,675 × 72,581.99
4. Step 4: Simplify right side
   117,877.86x = 11,807,274,409.88
5. Step 5: Solve for x
   x = 11,807,274,409.88/117,877.86
6. Step 6: Final answer
   x = 100,165.33