Finding the Fourth Proportional to 15,485.67, 21,373.34 and 9,196.83

Step by Step Solution

1. Step 1: Write the proportion equation
   15,485.67 : 21,373.34 = 9,196.83 : x
2. Step 2: Convert to fraction form
   15,485.67/21,373.34 = 9,196.83/x
3. Step 3: Cross multiply
   15,485.67x = 21,373.34 × 9,196.83
4. Step 4: Simplify right side
   15,485.67x = 196,566,928.53
5. Step 5: Solve for x
   x = 196,566,928.53/15,485.67
6. Step 6: Final answer
   x = 12,693.47