Finding the Fourth Proportional to 28,064.08, 42,099.34 and 13,063.42

Step by Step Solution

1. Step 1: Write the proportion equation
   28,064.08 : 42,099.34 = 13,063.42 : x
2. Step 2: Convert to fraction form
   28,064.08/42,099.34 = 13,063.42/x
3. Step 3: Cross multiply
   28,064.08x = 42,099.34 × 13,063.42
4. Step 4: Simplify right side
   28,064.08x = 549,961,360.14
5. Step 5: Solve for x
   x = 549,961,360.14/28,064.08
6. Step 6: Final answer
   x = 19,596.63