Finding the Fourth Proportional to 5,120,494.64, 7,066,545.72 and 2,828,636.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,120,494.64 : 7,066,545.72 = 2,828,636.72 : x
2. Step 2: Convert to fraction form
   5,120,494.64/7,066,545.72 = 2,828,636.72/x
3. Step 3: Cross multiply
   5,120,494.64x = 7,066,545.72 × 2,828,636.72
4. Step 4: Simplify right side
   5,120,494.64x = 19,988,690,707,150.84
5. Step 5: Solve for x
   x = 19,988,690,707,150.84/5,120,494.64
6. Step 6: Final answer
   x = 3,903,664.02