Finding the Fourth Proportional to 28,574.98, 42,863.82 and 13,796.32

Step by Step Solution

1. Step 1: Write the proportion equation
   28,574.98 : 42,863.82 = 13,796.32 : x
2. Step 2: Convert to fraction form
   28,574.98/42,863.82 = 13,796.32/x
3. Step 3: Cross multiply
   28,574.98x = 42,863.82 × 13,796.32
4. Step 4: Simplify right side
   28,574.98x = 591,362,977.14
5. Step 5: Solve for x
   x = 591,362,977.14/28,574.98
6. Step 6: Final answer
   x = 20,695.13