Finding the Fourth Proportional to 30,858.32, 42,584.34 and 16,711.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,858.32 : 42,584.34 = 16,711.10 : x
2. Step 2: Convert to fraction form
   30,858.32/42,584.34 = 16,711.10/x
3. Step 3: Cross multiply
   30,858.32x = 42,584.34 × 16,711.10
4. Step 4: Simplify right side
   30,858.32x = 711,631,164.17
5. Step 5: Solve for x
   x = 711,631,164.17/30,858.32
6. Step 6: Final answer
   x = 23,061.24