Finding the Fourth Proportional to 10,097.58, 13,929.87 and 7,115.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,097.58 : 13,929.87 = 7,115.06 : x
2. Step 2: Convert to fraction form
   10,097.58/13,929.87 = 7,115.06/x
3. Step 3: Cross multiply
   10,097.58x = 13,929.87 × 7,115.06
4. Step 4: Simplify right side
   10,097.58x = 99,111,817.87
5. Step 5: Solve for x
   x = 99,111,817.87/10,097.58
6. Step 6: Final answer
   x = 9,815.40