Finding the Fourth Proportional to 142,575.33, 196,753.23 and 78,912.96

Step by Step Solution

1. Step 1: Write the proportion equation
   142,575.33 : 196,753.23 = 78,912.96 : x
2. Step 2: Convert to fraction form
   142,575.33/196,753.23 = 78,912.96/x
3. Step 3: Cross multiply
   142,575.33x = 196,753.23 × 78,912.96
4. Step 4: Simplify right side
   142,575.33x = 15,526,379,768.86
5. Step 5: Solve for x
   x = 15,526,379,768.86/142,575.33
6. Step 6: Final answer
   x = 108,899.48