Finding the Fourth Proportional to 12,335,871.72, 17,025,284.51 and 7,107,878.99

Step by Step Solution

1. Step 1: Write the proportion equation
   12,335,871.72 : 17,025,284.51 = 7,107,878.99 : x
2. Step 2: Convert to fraction form
   12,335,871.72/17,025,284.51 = 7,107,878.99/x
3. Step 3: Cross multiply
   12,335,871.72x = 17,025,284.51 × 7,107,878.99
4. Step 4: Simplify right side
   12,335,871.72x = 121,013,662,067,401.45
5. Step 5: Solve for x
   x = 121,013,662,067,401.45/12,335,871.72
6. Step 6: Final answer
   x = 9,809,899.52