Finding the Fourth Proportional to 36,435,929,568.42, 54,661,348,611.56 and 12,529,329,432.72

Step by Step Solution

1. Step 1: Write the proportion equation
   36,435,929,568.42 : 54,661,348,611.56 = 12,529,329,432.72 : x
2. Step 2: Convert to fraction form
   36,435,929,568.42/54,661,348,611.56 = 12,529,329,432.72/x
3. Step 3: Cross multiply
   36,435,929,568.42x = 54,661,348,611.56 × 12,529,329,432.72
4. Step 4: Simplify right side
   36,435,929,568.42x = 684,870,043,990,987,112,448
5. Step 5: Solve for x
   x = 684,870,043,990,987,112,448/36,435,929,568.42
6. Step 6: Final answer
   x = 18,796,557,466.85