Finding the Fourth Proportional to 11,538.57, 15,921.88 and 7,064.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,538.57 : 15,921.88 = 7,064.94 : x
2. Step 2: Convert to fraction form
   11,538.57/15,921.88 = 7,064.94/x
3. Step 3: Cross multiply
   11,538.57x = 15,921.88 × 7,064.94
4. Step 4: Simplify right side
   11,538.57x = 112,487,126.89
5. Step 5: Solve for x
   x = 112,487,126.89/11,538.57
6. Step 6: Final answer
   x = 9,748.79