Finding the Fourth Proportional to 101,843.20, 152,705.59 and 68,147.72

Step by Step Solution

1. Step 1: Write the proportion equation
   101,843.20 : 152,705.59 = 68,147.72 : x
2. Step 2: Convert to fraction form
   101,843.20/152,705.59 = 68,147.72/x
3. Step 3: Cross multiply
   101,843.20x = 152,705.59 × 68,147.72
4. Step 4: Simplify right side
   101,843.20x = 10,406,537,789.75
5. Step 5: Solve for x
   x = 10,406,537,789.75/101,843.20
6. Step 6: Final answer
   x = 102,181.96