Finding the Fourth Proportional to 9,895.59, 13,656.07 and 5,419.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,895.59 : 13,656.07 = 5,419.76 : x
2. Step 2: Convert to fraction form
   9,895.59/13,656.07 = 5,419.76/x
3. Step 3: Cross multiply
   9,895.59x = 13,656.07 × 5,419.76
4. Step 4: Simplify right side
   9,895.59x = 74,012,622.01
5. Step 5: Solve for x
   x = 74,012,622.01/9,895.59
6. Step 6: Final answer
   x = 7,479.35