Finding the Fourth Proportional to 42,618.29, 63,927.59 and 13,036

Step by Step Solution

1. Step 1: Write the proportion equation
   42,618.29 : 63,927.59 = 13,036 : x
2. Step 2: Convert to fraction form
   42,618.29/63,927.59 = 13,036/x
3. Step 3: Cross multiply
   42,618.29x = 63,927.59 × 13,036
4. Step 4: Simplify right side
   42,618.29x = 833,360,063.24
5. Step 5: Solve for x
   x = 833,360,063.24/42,618.29
6. Step 6: Final answer
   x = 19,554.05