Finding the Fourth Proportional to 11,086.08, 15,298.56 and 7,898.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,086.08 : 15,298.56 = 7,898.88 : x
2. Step 2: Convert to fraction form
   11,086.08/15,298.56 = 7,898.88/x
3. Step 3: Cross multiply
   11,086.08x = 15,298.56 × 7,898.88
4. Step 4: Simplify right side
   11,086.08x = 120,841,489.61
5. Step 5: Solve for x
   x = 120,841,489.61/11,086.08
6. Step 6: Final answer
   x = 10,900.29