Finding the Fourth Proportional to 142,804.40, 213,996 and 79,537.37

Step by Step Solution

1. Step 1: Write the proportion equation
   142,804.40 : 213,996 = 79,537.37 : x
2. Step 2: Convert to fraction form
   142,804.40/213,996 = 79,537.37/x
3. Step 3: Cross multiply
   142,804.40x = 213,996 × 79,537.37
4. Step 4: Simplify right side
   142,804.40x = 17,020,677,960.54
5. Step 5: Solve for x
   x = 17,020,677,960.54/142,804.40
6. Step 6: Final answer
   x = 119,188.75