Finding the Fourth Proportional to 142,566.48, 213,847.29 and 42,725.07

Step by Step Solution

1. Step 1: Write the proportion equation
   142,566.48 : 213,847.29 = 42,725.07 : x
2. Step 2: Convert to fraction form
   142,566.48/213,847.29 = 42,725.07/x
3. Step 3: Cross multiply
   142,566.48x = 213,847.29 × 42,725.07
4. Step 4: Simplify right side
   142,566.48x = 9,136,640,434.56
5. Step 5: Solve for x
   x = 9,136,640,434.56/142,566.48
6. Step 6: Final answer
   x = 64,086.88