Finding the Fourth Proportional to 9,970.08, 13,758.72 and 5,493.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,970.08 : 13,758.72 = 5,493.72 : x
2. Step 2: Convert to fraction form
   9,970.08/13,758.72 = 5,493.72/x
3. Step 3: Cross multiply
   9,970.08x = 13,758.72 × 5,493.72
4. Step 4: Simplify right side
   9,970.08x = 75,586,555.24
5. Step 5: Solve for x
   x = 75,586,555.24/9,970.08
6. Step 6: Final answer
   x = 7,581.34