Finding the Fourth Proportional to 12,408,922.72, 18,613,617.34 and 3,889,070.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,408,922.72 : 18,613,617.34 = 3,889,070.56 : x
2. Step 2: Convert to fraction form
   12,408,922.72/18,613,617.34 = 3,889,070.56/x
3. Step 3: Cross multiply
   12,408,922.72x = 18,613,617.34 × 3,889,070.56
4. Step 4: Simplify right side
   12,408,922.72x = 72,389,671,212,099.52
5. Step 5: Solve for x
   x = 72,389,671,212,099.52/12,408,922.72
6. Step 6: Final answer
   x = 5,833,678.95