Finding the Fourth Proportional to 9,015,456.99, 13,490,860.17 and 7,805,196.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,015,456.99 : 13,490,860.17 = 7,805,196.57 : x
2. Step 2: Convert to fraction form
   9,015,456.99/13,490,860.17 = 7,805,196.57/x
3. Step 3: Cross multiply
   9,015,456.99x = 13,490,860.17 × 7,805,196.57
4. Step 4: Simplify right side
   9,015,456.99x = 105,298,815,525,233.62
5. Step 5: Solve for x
   x = 105,298,815,525,233.62/9,015,456.99
6. Step 6: Final answer
   x = 11,679,808.98