Finding the Fourth Proportional to 28,643, 39,527.61 and 16,068.02

Step by Step Solution

1. Step 1: Write the proportion equation
   28,643 : 39,527.61 = 16,068.02 : x
2. Step 2: Convert to fraction form
   28,643/39,527.61 = 16,068.02/x
3. Step 3: Cross multiply
   28,643x = 39,527.61 × 16,068.02
4. Step 4: Simplify right side
   28,643x = 635,130,428.03
5. Step 5: Solve for x
   x = 635,130,428.03/28,643
6. Step 6: Final answer
   x = 22,174.02