Finding the Fourth Proportional to 142,049.91, 213,038.01 and 42,186.63

Step by Step Solution

1. Step 1: Write the proportion equation
   142,049.91 : 213,038.01 = 42,186.63 : x
2. Step 2: Convert to fraction form
   142,049.91/213,038.01 = 42,186.63/x
3. Step 3: Cross multiply
   142,049.91x = 213,038.01 × 42,186.63
4. Step 4: Simplify right side
   142,049.91x = 8,987,355,703.81
5. Step 5: Solve for x
   x = 8,987,355,703.81/142,049.91
6. Step 6: Final answer
   x = 63,269.00