Finding the Fourth Proportional to 7,721.51, 10,700.52 and 7,573.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,721.51 : 10,700.52 = 7,573.82 : x
2. Step 2: Convert to fraction form
   7,721.51/10,700.52 = 7,573.82/x
3. Step 3: Cross multiply
   7,721.51x = 10,700.52 × 7,573.82
4. Step 4: Simplify right side
   7,721.51x = 81,043,730.48
5. Step 5: Solve for x
   x = 81,043,730.48/7,721.51
6. Step 6: Final answer
   x = 10,495.85