Finding the Fourth Proportional to 9,195,499.42, 12,690,182.87 and 5,121,118.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,195,499.42 : 12,690,182.87 = 5,121,118.42 : x
2. Step 2: Convert to fraction form
   9,195,499.42/12,690,182.87 = 5,121,118.42/x
3. Step 3: Cross multiply
   9,195,499.42x = 12,690,182.87 × 5,121,118.42
4. Step 4: Simplify right side
   9,195,499.42x = 64,987,929,248,725.46
5. Step 5: Solve for x
   x = 64,987,929,248,725.46/9,195,499.42
6. Step 6: Final answer
   x = 7,067,362.66