Finding the Fourth Proportional to 12,749,819.72, 17,593,271 and 7,785,767.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,749,819.72 : 17,593,271 = 7,785,767.12 : x
2. Step 2: Convert to fraction form
   12,749,819.72/17,593,271 = 7,785,767.12/x
3. Step 3: Cross multiply
   12,749,819.72x = 17,593,271 × 7,785,767.12
4. Step 4: Simplify right side
   12,749,819.72x = 136,977,110,885,049.52
5. Step 5: Solve for x
   x = 136,977,110,885,049.52/12,749,819.72
6. Step 6: Final answer
   x = 10,743,454.72