Finding the Fourth Proportional to 12,628,780.32, 17,433,546.12 and 7,401,066.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,628,780.32 : 17,433,546.12 = 7,401,066.24 : x
2. Step 2: Convert to fraction form
   12,628,780.32/17,433,546.12 = 7,401,066.24/x
3. Step 3: Cross multiply
   12,628,780.32x = 17,433,546.12 × 7,401,066.24
4. Step 4: Simplify right side
   12,628,780.32x = 129,026,829,632,215
5. Step 5: Solve for x
   x = 129,026,829,632,215/12,628,780.32
6. Step 6: Final answer
   x = 10,216,887.65