Finding the Fourth Proportional to 7,929.30, 10,947.81 and 7,087.32

Step by Step Solution

1. Step 1: Write the proportion equation
   7,929.30 : 10,947.81 = 7,087.32 : x
2. Step 2: Convert to fraction form
   7,929.30/10,947.81 = 7,087.32/x
3. Step 3: Cross multiply
   7,929.30x = 10,947.81 × 7,087.32
4. Step 4: Simplify right side
   7,929.30x = 77,590,632.77
5. Step 5: Solve for x
   x = 77,590,632.77/7,929.30
6. Step 6: Final answer
   x = 9,785.31