Finding the Fourth Proportional to 9,192,081.45, 12,684,487.83 and 5,521,152.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,192,081.45 : 12,684,487.83 = 5,521,152.75 : x
2. Step 2: Convert to fraction form
   9,192,081.45/12,684,487.83 = 5,521,152.75/x
3. Step 3: Cross multiply
   9,192,081.45x = 12,684,487.83 × 5,521,152.75
4. Step 4: Simplify right side
   9,192,081.45x = 70,032,994,864,946.03
5. Step 5: Solve for x
   x = 70,032,994,864,946.03/9,192,081.45
6. Step 6: Final answer
   x = 7,618,839.68