Finding the Fourth Proportional to 12,983,540.22, 19,477,082.61 and 5,408,734.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,983,540.22 : 19,477,082.61 = 5,408,734.50 : x
2. Step 2: Convert to fraction form
   12,983,540.22/19,477,082.61 = 5,408,734.50/x
3. Step 3: Cross multiply
   12,983,540.22x = 19,477,082.61 × 5,408,734.50
4. Step 4: Simplify right side
   12,983,540.22x = 105,346,368,672,057.05
5. Step 5: Solve for x
   x = 105,346,368,672,057.05/12,983,540.22
6. Step 6: Final answer
   x = 8,113,840.05