Finding the Fourth Proportional to 111,702.96, 154,168.20 and 83,212.56

Step by Step Solution

1. Step 1: Write the proportion equation
   111,702.96 : 154,168.20 = 83,212.56 : x
2. Step 2: Convert to fraction form
   111,702.96/154,168.20 = 83,212.56/x
3. Step 3: Cross multiply
   111,702.96x = 154,168.20 × 83,212.56
4. Step 4: Simplify right side
   111,702.96x = 12,828,730,592.59
5. Step 5: Solve for x
   x = 12,828,730,592.59/111,702.96
6. Step 6: Final answer
   x = 114,846.83