Finding the Fourth Proportional to 5,300,485.70, 7,950,728.55 and 5,300,485.70

Step by Step Solution

1. Step 1: Write the proportion equation
   5,300,485.70 : 7,950,728.55 = 5,300,485.70 : x
2. Step 2: Convert to fraction form
   5,300,485.70/7,950,728.55 = 5,300,485.70/x
3. Step 3: Cross multiply
   5,300,485.70x = 7,950,728.55 × 5,300,485.70
4. Step 4: Simplify right side
   5,300,485.70x = 42,142,722,983,856.73
5. Step 5: Solve for x
   x = 42,142,722,983,856.73/5,300,485.70
6. Step 6: Final answer
   x = 7,950,728.55