Finding the Fourth Proportional to 13,259.72, 19,885.37 and 4,492.58

Step by Step Solution

1. Step 1: Write the proportion equation
   13,259.72 : 19,885.37 = 4,492.58 : x
2. Step 2: Convert to fraction form
   13,259.72/19,885.37 = 4,492.58/x
3. Step 3: Cross multiply
   13,259.72x = 19,885.37 × 4,492.58
4. Step 4: Simplify right side
   13,259.72x = 89,336,615.55
5. Step 5: Solve for x
   x = 89,336,615.55/13,259.72
6. Step 6: Final answer
   x = 6,737.44