Finding the Fourth Proportional to 9,412,586.59, 12,990,672.52 and 5,282,863.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,412,586.59 : 12,990,672.52 = 5,282,863.55 : x
2. Step 2: Convert to fraction form
   9,412,586.59/12,990,672.52 = 5,282,863.55/x
3. Step 3: Cross multiply
   9,412,586.59x = 12,990,672.52 × 5,282,863.55
4. Step 4: Simplify right side
   9,412,586.59x = 68,627,950,365,164.17
5. Step 5: Solve for x
   x = 68,627,950,365,164.17/9,412,586.59
6. Step 6: Final answer
   x = 7,291,083.03