Finding the Fourth Proportional to 19,196.50, 28,796.40 and 5,345.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,196.50 : 28,796.40 = 5,345.50 : x
2. Step 2: Convert to fraction form
   19,196.50/28,796.40 = 5,345.50/x
3. Step 3: Cross multiply
   19,196.50x = 28,796.40 × 5,345.50
4. Step 4: Simplify right side
   19,196.50x = 153,931,156.20
5. Step 5: Solve for x
   x = 153,931,156.20/19,196.50
6. Step 6: Final answer
   x = 8,018.71