Finding the Fourth Proportional to 19,830.56, 29,748.59 and 6,686.69

Step by Step Solution

1. Step 1: Write the proportion equation
   19,830.56 : 29,748.59 = 6,686.69 : x
2. Step 2: Convert to fraction form
   19,830.56/29,748.59 = 6,686.69/x
3. Step 3: Cross multiply
   19,830.56x = 29,748.59 × 6,686.69
4. Step 4: Simplify right side
   19,830.56x = 198,919,565.83
5. Step 5: Solve for x
   x = 198,919,565.83/19,830.56
6. Step 6: Final answer
   x = 10,030.96