Finding the Fourth Proportional to 10,603,288.50, 15,875,300.43 and 5,728,129.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,603,288.50 : 15,875,300.43 = 5,728,129.25 : x
2. Step 2: Convert to fraction form
   10,603,288.50/15,875,300.43 = 5,728,129.25/x
3. Step 3: Cross multiply
   10,603,288.50x = 15,875,300.43 × 5,728,129.25
4. Step 4: Simplify right side
   10,603,288.50x = 90,935,772,745,620.58
5. Step 5: Solve for x
   x = 90,935,772,745,620.58/10,603,288.50
6. Step 6: Final answer
   x = 8,576,185.85