Finding the Fourth Proportional to 12,596,399.55, 18,897,597.88 and 4,076,736.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,596,399.55 : 18,897,597.88 = 4,076,736.12 : x
2. Step 2: Convert to fraction form
   12,596,399.55/18,897,597.88 = 4,076,736.12/x
3. Step 3: Cross multiply
   12,596,399.55x = 18,897,597.88 × 4,076,736.12
4. Step 4: Simplify right side
   12,596,399.55x = 77,040,519,848,439.59
5. Step 5: Solve for x
   x = 77,040,519,848,439.59/12,596,399.55
6. Step 6: Final answer
   x = 6,116,074.64