Finding the Fourth Proportional to 108,406.29, 162,440.86 and 75,191.25

Step by Step Solution

1. Step 1: Write the proportion equation
   108,406.29 : 162,440.86 = 75,191.25 : x
2. Step 2: Convert to fraction form
   108,406.29/162,440.86 = 75,191.25/x
3. Step 3: Cross multiply
   108,406.29x = 162,440.86 × 75,191.25
4. Step 4: Simplify right side
   108,406.29x = 12,214,131,314.48
5. Step 5: Solve for x
   x = 12,214,131,314.48/108,406.29
6. Step 6: Final answer
   x = 112,669.95