Finding the Fourth Proportional to 12,326,994.86, 18,493,014.22 and 4,238,920.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,326,994.86 : 18,493,014.22 = 4,238,920.07 : x
2. Step 2: Convert to fraction form
   12,326,994.86/18,493,014.22 = 4,238,920.07/x
3. Step 3: Cross multiply
   12,326,994.86x = 18,493,014.22 × 4,238,920.07
4. Step 4: Simplify right side
   12,326,994.86x = 78,390,409,028,891.03
5. Step 5: Solve for x
   x = 78,390,409,028,891.03/12,326,994.86
6. Step 6: Final answer
   x = 6,359,247.32