Finding the Fourth Proportional to 3,609,081.12, 5,413,240.20 and 1,902,540.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,609,081.12 : 5,413,240.20 = 1,902,540.72 : x
2. Step 2: Convert to fraction form
   3,609,081.12/5,413,240.20 = 1,902,540.72/x
3. Step 3: Cross multiply
   3,609,081.12x = 5,413,240.20 × 1,902,540.72
4. Step 4: Simplify right side
   3,609,081.12x = 10,298,909,907,640.94
5. Step 5: Solve for x
   x = 10,298,909,907,640.94/3,609,081.12
6. Step 6: Final answer
   x = 2,853,609.98