Finding the Fourth Proportional to 12,911,986.83, 17,817,966.14 and 7,401,410.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,911,986.83 : 17,817,966.14 = 7,401,410.31 : x
2. Step 2: Convert to fraction form
   12,911,986.83/17,817,966.14 = 7,401,410.31/x
3. Step 3: Cross multiply
   12,911,986.83x = 17,817,966.14 × 7,401,410.31
4. Step 4: Simplify right side
   12,911,986.83x = 131,878,078,254,819.86
5. Step 5: Solve for x
   x = 131,878,078,254,819.86/12,911,986.83
6. Step 6: Final answer
   x = 10,213,616.23