Finding the Fourth Proportional to 10,086.63, 15,097.59 and 5,394.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,086.63 : 15,097.59 = 5,394.90 : x
2. Step 2: Convert to fraction form
   10,086.63/15,097.59 = 5,394.90/x
3. Step 3: Cross multiply
   10,086.63x = 15,097.59 × 5,394.90
4. Step 4: Simplify right side
   10,086.63x = 81,450,044.91
5. Step 5: Solve for x
   x = 81,450,044.91/10,086.63
6. Step 6: Final answer
   x = 8,075.05