Finding the Fourth Proportional to 9,897.84, 13,659.17 and 5,422.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,897.84 : 13,659.17 = 5,422.01 : x
2. Step 2: Convert to fraction form
   9,897.84/13,659.17 = 5,422.01/x
3. Step 3: Cross multiply
   9,897.84x = 13,659.17 × 5,422.01
4. Step 4: Simplify right side
   9,897.84x = 74,060,204.03
5. Step 5: Solve for x
   x = 74,060,204.03/9,897.84
6. Step 6: Final answer
   x = 7,482.46