Finding the Fourth Proportional to 9,856.10, 13,599.72 and 5,875.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,856.10 : 13,599.72 = 5,875.76 : x
2. Step 2: Convert to fraction form
   9,856.10/13,599.72 = 5,875.76/x
3. Step 3: Cross multiply
   9,856.10x = 13,599.72 × 5,875.76
4. Step 4: Simplify right side
   9,856.10x = 79,908,622.79
5. Step 5: Solve for x
   x = 79,908,622.79/9,856.10
6. Step 6: Final answer
   x = 8,107.53