Finding the Fourth Proportional to 9,962.19, 13,748.06 and 5,486.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,962.19 : 13,748.06 = 5,486.00 : x
2. Step 2: Convert to fraction form
   9,962.19/13,748.06 = 5,486.00/x
3. Step 3: Cross multiply
   9,962.19x = 13,748.06 × 5,486.00
4. Step 4: Simplify right side
   9,962.19x = 75,421,802.13
5. Step 5: Solve for x
   x = 75,421,802.13/9,962.19
6. Step 6: Final answer
   x = 7,570.81