Finding the Fourth Proportional to 12,421,054.10, 18,632,325.40 and 3,901,390.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,421,054.10 : 18,632,325.40 = 3,901,390.56 : x
2. Step 2: Convert to fraction form
   12,421,054.10/18,632,325.40 = 3,901,390.56/x
3. Step 3: Cross multiply
   12,421,054.10x = 18,632,325.40 × 3,901,390.56
4. Step 4: Simplify right side
   12,421,054.10x = 72,691,978,426,408.22
5. Step 5: Solve for x
   x = 72,691,978,426,408.22/12,421,054.10
6. Step 6: Final answer
   x = 5,852,319.61