Finding the Fourth Proportional to 10,388,763.57, 15,583,145.49 and 2,815,729.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,388,763.57 : 15,583,145.49 = 2,815,729.32 : x
2. Step 2: Convert to fraction form
   10,388,763.57/15,583,145.49 = 2,815,729.32/x
3. Step 3: Cross multiply
   10,388,763.57x = 15,583,145.49 × 2,815,729.32
4. Step 4: Simplify right side
   10,388,763.57x = 43,877,919,654,018.77
5. Step 5: Solve for x
   x = 43,877,919,654,018.77/10,388,763.57
6. Step 6: Final answer
   x = 4,223,594.02