Finding the Fourth Proportional to 12,037,447.45, 18,057,540.78 and 4,364,706.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,037,447.45 : 18,057,540.78 = 4,364,706.05 : x
2. Step 2: Convert to fraction form
   12,037,447.45/18,057,540.78 = 4,364,706.05/x
3. Step 3: Cross multiply
   12,037,447.45x = 18,057,540.78 × 4,364,706.05
4. Step 4: Simplify right side
   12,037,447.45x = 78,815,857,490,587.72
5. Step 5: Solve for x
   x = 78,815,857,490,587.72/12,037,447.45
6. Step 6: Final answer
   x = 6,547,555.69