Finding the Fourth Proportional to 9,819.42, 13,551.12 and 5,342.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,819.42 : 13,551.12 = 5,342.92 : x
2. Step 2: Convert to fraction form
   9,819.42/13,551.12 = 5,342.92/x
3. Step 3: Cross multiply
   9,819.42x = 13,551.12 × 5,342.92
4. Step 4: Simplify right side
   9,819.42x = 72,402,550.07
5. Step 5: Solve for x
   x = 72,402,550.07/9,819.42
6. Step 6: Final answer
   x = 7,373.40