Finding the Fourth Proportional to 30,748.78, 42,435.93 and 17,322.67

Step by Step Solution

1. Step 1: Write the proportion equation
   30,748.78 : 42,435.93 = 17,322.67 : x
2. Step 2: Convert to fraction form
   30,748.78/42,435.93 = 17,322.67/x
3. Step 3: Cross multiply
   30,748.78x = 42,435.93 × 17,322.67
4. Step 4: Simplify right side
   30,748.78x = 735,103,611.53
5. Step 5: Solve for x
   x = 735,103,611.53/30,748.78
6. Step 6: Final answer
   x = 23,906.76