Finding the Fourth Proportional to 142,453.52, 213,658.32 and 58,210.64

Step by Step Solution

1. Step 1: Write the proportion equation
   142,453.52 : 213,658.32 = 58,210.64 : x
2. Step 2: Convert to fraction form
   142,453.52/213,658.32 = 58,210.64/x
3. Step 3: Cross multiply
   142,453.52x = 213,658.32 × 58,210.64
4. Step 4: Simplify right side
   142,453.52x = 12,437,187,548.52
5. Step 5: Solve for x
   x = 12,437,187,548.52/142,453.52
6. Step 6: Final answer
   x = 87,306.99