Finding the Fourth Proportional to 12,485,111.76, 18,727,245.52 and 4,397,876.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,485,111.76 : 18,727,245.52 = 4,397,876.05 : x
2. Step 2: Convert to fraction form
   12,485,111.76/18,727,245.52 = 4,397,876.05/x
3. Step 3: Cross multiply
   12,485,111.76x = 18,727,245.52 × 4,397,876.05
4. Step 4: Simplify right side
   12,485,111.76x = 82,360,104,554,877.80
5. Step 5: Solve for x
   x = 82,360,104,554,877.80/12,485,111.76
6. Step 6: Final answer
   x = 6,596,665.38