Finding the Fourth Proportional to 19,605.42, 29,411.40 and 9,085.98

Step by Step Solution

1. Step 1: Write the proportion equation
   19,605.42 : 29,411.40 = 9,085.98 : x
2. Step 2: Convert to fraction form
   19,605.42/29,411.40 = 9,085.98/x
3. Step 3: Cross multiply
   19,605.42x = 29,411.40 × 9,085.98
4. Step 4: Simplify right side
   19,605.42x = 267,231,392.17
5. Step 5: Solve for x
   x = 267,231,392.17/19,605.42
6. Step 6: Final answer
   x = 13,630.49