Finding the Fourth Proportional to 49,143.02, 73,725.60 and 17,978

Step by Step Solution

1. Step 1: Write the proportion equation
   49,143.02 : 73,725.60 = 17,978 : x
2. Step 2: Convert to fraction form
   49,143.02/73,725.60 = 17,978/x
3. Step 3: Cross multiply
   49,143.02x = 73,725.60 × 17,978
4. Step 4: Simplify right side
   49,143.02x = 1,325,438,836.80
5. Step 5: Solve for x
   x = 1,325,438,836.80/49,143.02
6. Step 6: Final answer
   x = 26,971.05