Finding the Fourth Proportional to 5,638,397.28, 7,780,993.59 and 3,060,078.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,638,397.28 : 7,780,993.59 = 3,060,078.72 : x
2. Step 2: Convert to fraction form
   5,638,397.28/7,780,993.59 = 3,060,078.72/x
3. Step 3: Cross multiply
   5,638,397.28x = 7,780,993.59 × 3,060,078.72
4. Step 4: Simplify right side
   5,638,397.28x = 23,810,452,905,215.41
5. Step 5: Solve for x
   x = 23,810,452,905,215.41/5,638,397.28
6. Step 6: Final answer
   x = 4,222,911.53