Finding the Fourth Proportional to 10,721.81, 14,780.52 and 7,525.13

Step by Step Solution

1. Step 1: Write the proportion equation
   10,721.81 : 14,780.52 = 7,525.13 : x
2. Step 2: Convert to fraction form
   10,721.81/14,780.52 = 7,525.13/x
3. Step 3: Cross multiply
   10,721.81x = 14,780.52 × 7,525.13
4. Step 4: Simplify right side
   10,721.81x = 111,225,334.47
5. Step 5: Solve for x
   x = 111,225,334.47/10,721.81
6. Step 6: Final answer
   x = 10,373.75