Finding the Fourth Proportional to 47,142.56, 70,725.72 and 17,561.36

Step by Step Solution

1. Step 1: Write the proportion equation
   47,142.56 : 70,725.72 = 17,561.36 : x
2. Step 2: Convert to fraction form
   47,142.56/70,725.72 = 17,561.36/x
3. Step 3: Cross multiply
   47,142.56x = 70,725.72 × 17,561.36
4. Step 4: Simplify right side
   47,142.56x = 1,242,039,830.18
5. Step 5: Solve for x
   x = 1,242,039,830.18/47,142.56
6. Step 6: Final answer
   x = 26,346.47