Finding the Fourth Proportional to 13,063.78, 19,586.98 and 4,742.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,063.78 : 19,586.98 = 4,742.72 : x
2. Step 2: Convert to fraction form
   13,063.78/19,586.98 = 4,742.72/x
3. Step 3: Cross multiply
   13,063.78x = 19,586.98 × 4,742.72
4. Step 4: Simplify right side
   13,063.78x = 92,895,543.23
5. Step 5: Solve for x
   x = 92,895,543.23/13,063.78
6. Step 6: Final answer
   x = 7,110.92