Finding the Fourth Proportional to 9,748.90, 13,453.80 and 5,499.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,748.90 : 13,453.80 = 5,499.88 : x
2. Step 2: Convert to fraction form
   9,748.90/13,453.80 = 5,499.88/x
3. Step 3: Cross multiply
   9,748.90x = 13,453.80 × 5,499.88
4. Step 4: Simplify right side
   9,748.90x = 73,994,285.54
5. Step 5: Solve for x
   x = 73,994,285.54/9,748.90
6. Step 6: Final answer
   x = 7,590.01