Finding the Fourth Proportional to 9,195,498.42, 12,690,181.49 and 5,121,117.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,195,498.42 : 12,690,181.49 = 5,121,117.42 : x
2. Step 2: Convert to fraction form
   9,195,498.42/12,690,181.49 = 5,121,117.42/x
3. Step 3: Cross multiply
   9,195,498.42x = 12,690,181.49 × 5,121,117.42
4. Step 4: Simplify right side
   9,195,498.42x = 64,987,909,465,794.96
5. Step 5: Solve for x
   x = 64,987,909,465,794.96/9,195,498.42
6. Step 6: Final answer
   x = 7,067,361.28