Finding the Fourth Proportional to 142,401.06, 213,633.99 and 75,806.10

Step by Step Solution

1. Step 1: Write the proportion equation
   142,401.06 : 213,633.99 = 75,806.10 : x
2. Step 2: Convert to fraction form
   142,401.06/213,633.99 = 75,806.10/x
3. Step 3: Cross multiply
   142,401.06x = 213,633.99 × 75,806.10
4. Step 4: Simplify right side
   142,401.06x = 16,194,759,609.34
5. Step 5: Solve for x
   x = 16,194,759,609.34/142,401.06
6. Step 6: Final answer
   x = 113,726.40