Finding the Fourth Proportional to 19,925.31, 29,891.25 and 7,449.69

Step by Step Solution

1. Step 1: Write the proportion equation
   19,925.31 : 29,891.25 = 7,449.69 : x
2. Step 2: Convert to fraction form
   19,925.31/29,891.25 = 7,449.69/x
3. Step 3: Cross multiply
   19,925.31x = 29,891.25 × 7,449.69
4. Step 4: Simplify right side
   19,925.31x = 222,680,546.21
5. Step 5: Solve for x
   x = 222,680,546.21/19,925.31
6. Step 6: Final answer
   x = 11,175.76