Finding the Fourth Proportional to 108,204.04, 162,164.56 and 78,318.88

Step by Step Solution

1. Step 1: Write the proportion equation
   108,204.04 : 162,164.56 = 78,318.88 : x
2. Step 2: Convert to fraction form
   108,204.04/162,164.56 = 78,318.88/x
3. Step 3: Cross multiply
   108,204.04x = 162,164.56 × 78,318.88
4. Step 4: Simplify right side
   108,204.04x = 12,700,546,714.89
5. Step 5: Solve for x
   x = 12,700,546,714.89/108,204.04
6. Step 6: Final answer
   x = 117,375.90