Finding the Fourth Proportional to 19,886.55, 27,443.61 and 10,934.12

Step by Step Solution

1. Step 1: Write the proportion equation
   19,886.55 : 27,443.61 = 10,934.12 : x
2. Step 2: Convert to fraction form
   19,886.55/27,443.61 = 10,934.12/x
3. Step 3: Cross multiply
   19,886.55x = 27,443.61 × 10,934.12
4. Step 4: Simplify right side
   19,886.55x = 300,071,587.76
5. Step 5: Solve for x
   x = 300,071,587.76/19,886.55
6. Step 6: Final answer
   x = 15,089.17