Finding the Fourth Proportional to 5,200,644.47, 7,177,100.88 and 2,877,499.20

Step by Step Solution

1. Step 1: Write the proportion equation
   5,200,644.47 : 7,177,100.88 = 2,877,499.20 : x
2. Step 2: Convert to fraction form
   5,200,644.47/7,177,100.88 = 2,877,499.20/x
3. Step 3: Cross multiply
   5,200,644.47x = 7,177,100.88 × 2,877,499.20
4. Step 4: Simplify right side
   5,200,644.47x = 20,652,102,040,519.30
5. Step 5: Solve for x
   x = 20,652,102,040,519.30/5,200,644.47
6. Step 6: Final answer
   x = 3,971,065.93