Finding the Fourth Proportional to 9,913.57, 14,857.52 and 7,564.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,913.57 : 14,857.52 = 7,564.91 : x
2. Step 2: Convert to fraction form
   9,913.57/14,857.52 = 7,564.91/x
3. Step 3: Cross multiply
   9,913.57x = 14,857.52 × 7,564.91
4. Step 4: Simplify right side
   9,913.57x = 112,395,689.51
5. Step 5: Solve for x
   x = 112,395,689.51/9,913.57
6. Step 6: Final answer
   x = 11,337.56