Finding the Fourth Proportional to 13,023.89, 19,493.21 and 7,085.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,023.89 : 19,493.21 = 7,085.94 : x
2. Step 2: Convert to fraction form
   13,023.89/19,493.21 = 7,085.94/x
3. Step 3: Cross multiply
   13,023.89x = 19,493.21 × 7,085.94
4. Step 4: Simplify right side
   13,023.89x = 138,127,681.04
5. Step 5: Solve for x
   x = 138,127,681.04/13,023.89
6. Step 6: Final answer
   x = 10,605.72