Finding the Fourth Proportional to 142,002.99, 213,158.03 and 126,308.53

Step by Step Solution

1. Step 1: Write the proportion equation
   142,002.99 : 213,158.03 = 126,308.53 : x
2. Step 2: Convert to fraction form
   142,002.99/213,158.03 = 126,308.53/x
3. Step 3: Cross multiply
   142,002.99x = 213,158.03 × 126,308.53
4. Step 4: Simplify right side
   142,002.99x = 26,923,677,427.00
5. Step 5: Solve for x
   x = 26,923,677,427.00/142,002.99
6. Step 6: Final answer
   x = 189,599.37