Finding the Fourth Proportional to 9,195,504.42, 12,690,189.77 and 5,121,123.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,195,504.42 : 12,690,189.77 = 5,121,123.42 : x
2. Step 2: Convert to fraction form
   9,195,504.42/12,690,189.77 = 5,121,123.42/x
3. Step 3: Cross multiply
   9,195,504.42x = 12,690,189.77 × 5,121,123.42
4. Step 4: Simplify right side
   9,195,504.42x = 64,988,028,009,785.80
5. Step 5: Solve for x
   x = 64,988,028,009,785.80/9,195,504.42
6. Step 6: Final answer
   x = 7,067,369.56