Finding the Fourth Proportional to 17,620,845.82, 24,271,459.56 and 12,455,326.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,620,845.82 : 24,271,459.56 = 12,455,326.78 : x
2. Step 2: Convert to fraction form
   17,620,845.82/24,271,459.56 = 12,455,326.78/x
3. Step 3: Cross multiply
   17,620,845.82x = 24,271,459.56 × 12,455,326.78
4. Step 4: Simplify right side
   17,620,845.82x = 302,308,960,247,355
5. Step 5: Solve for x
   x = 302,308,960,247,355/17,620,845.82
6. Step 6: Final answer
   x = 17,156,325.15