Finding the Fourth Proportional to 12,722,921.56, 17,563,729.99 and 7,832,335.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,722,921.56 : 17,563,729.99 = 7,832,335.76 : x
2. Step 2: Convert to fraction form
   12,722,921.56/17,563,729.99 = 7,832,335.76/x
3. Step 3: Cross multiply
   12,722,921.56x = 17,563,729.99 × 7,832,335.76
4. Step 4: Simplify right side
   12,722,921.56x = 137,565,030,391,842.78
5. Step 5: Solve for x
   x = 137,565,030,391,842.78/12,722,921.56
6. Step 6: Final answer
   x = 10,812,377.47