Finding the Fourth Proportional to 28,066.32, 42,077.41 and 14,019.10

Step by Step Solution

1. Step 1: Write the proportion equation
   28,066.32 : 42,077.41 = 14,019.10 : x
2. Step 2: Convert to fraction form
   28,066.32/42,077.41 = 14,019.10/x
3. Step 3: Cross multiply
   28,066.32x = 42,077.41 × 14,019.10
4. Step 4: Simplify right side
   28,066.32x = 589,887,278.29
5. Step 5: Solve for x
   x = 589,887,278.29/28,066.32
6. Step 6: Final answer
   x = 21,017.62