Finding the Fourth Proportional to 9,970.28, 13,758.78 and 5,493.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,970.28 : 13,758.78 = 5,493.93 : x
2. Step 2: Convert to fraction form
   9,970.28/13,758.78 = 5,493.93/x
3. Step 3: Cross multiply
   9,970.28x = 13,758.78 × 5,493.93
4. Step 4: Simplify right side
   9,970.28x = 75,589,774.21
5. Step 5: Solve for x
   x = 75,589,774.21/9,970.28
6. Step 6: Final answer
   x = 7,581.51