Finding the Fourth Proportional to 9,895.95, 13,656.63 and 5,419.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,895.95 : 13,656.63 = 5,419.89 : x
2. Step 2: Convert to fraction form
   9,895.95/13,656.63 = 5,419.89/x
3. Step 3: Cross multiply
   9,895.95x = 13,656.63 × 5,419.89
4. Step 4: Simplify right side
   9,895.95x = 74,017,432.37
5. Step 5: Solve for x
   x = 74,017,432.37/9,895.95
6. Step 6: Final answer
   x = 7,479.57