Finding the Fourth Proportional to 143,870.50, 215,893.23 and 60,764.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,870.50 : 215,893.23 = 60,764.50 : x
2. Step 2: Convert to fraction form
   143,870.50/215,893.23 = 60,764.50/x
3. Step 3: Cross multiply
   143,870.50x = 215,893.23 × 60,764.50
4. Step 4: Simplify right side
   143,870.50x = 13,118,644,174.34
5. Step 5: Solve for x
   x = 13,118,644,174.34/143,870.50
6. Step 6: Final answer
   x = 91,183.70