Finding the Fourth Proportional to 12,296,630.45, 16,970,846.42 and 7,139,992.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,296,630.45 : 16,970,846.42 = 7,139,992.25 : x
2. Step 2: Convert to fraction form
   12,296,630.45/16,970,846.42 = 7,139,992.25/x
3. Step 3: Cross multiply
   12,296,630.45x = 16,970,846.42 × 7,139,992.25
4. Step 4: Simplify right side
   12,296,630.45x = 121,171,711,975,017.34
5. Step 5: Solve for x
   x = 121,171,711,975,017.34/12,296,630.45
6. Step 6: Final answer
   x = 9,854,058.19