Finding the Fourth Proportional to 10,587.89, 15,885.93 and 7,837.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,587.89 : 15,885.93 = 7,837.76 : x
2. Step 2: Convert to fraction form
   10,587.89/15,885.93 = 7,837.76/x
3. Step 3: Cross multiply
   10,587.89x = 15,885.93 × 7,837.76
4. Step 4: Simplify right side
   10,587.89x = 124,510,106.72
5. Step 5: Solve for x
   x = 124,510,106.72/10,587.89
6. Step 6: Final answer
   x = 11,759.67