Finding the Fourth Proportional to 8,375,942.18, 12,574,544.52 and 7,121,741.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,375,942.18 : 12,574,544.52 = 7,121,741.42 : x
2. Step 2: Convert to fraction form
   8,375,942.18/12,574,544.52 = 7,121,741.42/x
3. Step 3: Cross multiply
   8,375,942.18x = 12,574,544.52 × 7,121,741.42
4. Step 4: Simplify right side
   8,375,942.18x = 89,552,654,545,718.02
5. Step 5: Solve for x
   x = 89,552,654,545,718.02/8,375,942.18
6. Step 6: Final answer
   x = 10,691,651.47