Finding the Fourth Proportional to 11,536.71, 15,920.28 and 7,290.04

Step by Step Solution

1. Step 1: Write the proportion equation
   11,536.71 : 15,920.28 = 7,290.04 : x
2. Step 2: Convert to fraction form
   11,536.71/15,920.28 = 7,290.04/x
3. Step 3: Cross multiply
   11,536.71x = 15,920.28 × 7,290.04
4. Step 4: Simplify right side
   11,536.71x = 116,059,478.01
5. Step 5: Solve for x
   x = 116,059,478.01/11,536.71
6. Step 6: Final answer
   x = 10,060.02