Finding the Fourth Proportional to 9,970.34, 13,758.56 and 5,493.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,970.34 : 13,758.56 = 5,493.36 : x
2. Step 2: Convert to fraction form
   9,970.34/13,758.56 = 5,493.36/x
3. Step 3: Cross multiply
   9,970.34x = 13,758.56 × 5,493.36
4. Step 4: Simplify right side
   9,970.34x = 75,580,736.90
5. Step 5: Solve for x
   x = 75,580,736.90/9,970.34
6. Step 6: Final answer
   x = 7,580.56