Finding the Fourth Proportional to 10,493.58, 15,734.10 and 7,120.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,493.58 : 15,734.10 = 7,120.53 : x
2. Step 2: Convert to fraction form
   10,493.58/15,734.10 = 7,120.53/x
3. Step 3: Cross multiply
   10,493.58x = 15,734.10 × 7,120.53
4. Step 4: Simplify right side
   10,493.58x = 112,035,131.07
5. Step 5: Solve for x
   x = 112,035,131.07/10,493.58
6. Step 6: Final answer
   x = 10,676.54