Finding the Fourth Proportional to 45,487.39, 68,238.39 and 19,196.02

Step by Step Solution

1. Step 1: Write the proportion equation
   45,487.39 : 68,238.39 = 19,196.02 : x
2. Step 2: Convert to fraction form
   45,487.39/68,238.39 = 19,196.02/x
3. Step 3: Cross multiply
   45,487.39x = 68,238.39 × 19,196.02
4. Step 4: Simplify right side
   45,487.39x = 1,309,905,499.21
5. Step 5: Solve for x
   x = 1,309,905,499.21/45,487.39
6. Step 6: Final answer
   x = 28,797.11