Finding the Fourth Proportional to 10,642.86, 15,953.49 and 5,088.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,642.86 : 15,953.49 = 5,088.06 : x
2. Step 2: Convert to fraction form
   10,642.86/15,953.49 = 5,088.06/x
3. Step 3: Cross multiply
   10,642.86x = 15,953.49 × 5,088.06
4. Step 4: Simplify right side
   10,642.86x = 81,172,314.33
5. Step 5: Solve for x
   x = 81,172,314.33/10,642.86
6. Step 6: Final answer
   x = 7,626.93