Finding the Fourth Proportional to 13,061.92, 19,588.74 and 4,294.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,061.92 : 19,588.74 = 4,294.80 : x
2. Step 2: Convert to fraction form
   13,061.92/19,588.74 = 4,294.80/x
3. Step 3: Cross multiply
   13,061.92x = 19,588.74 × 4,294.80
4. Step 4: Simplify right side
   13,061.92x = 84,129,720.55
5. Step 5: Solve for x
   x = 84,129,720.55/13,061.92
6. Step 6: Final answer
   x = 6,440.84