Finding the Fourth Proportional to 93,174.72, 139,644.82 and 50,478.50

Step by Step Solution

1. Step 1: Write the proportion equation
   93,174.72 : 139,644.82 = 50,478.50 : x
2. Step 2: Convert to fraction form
   93,174.72/139,644.82 = 50,478.50/x
3. Step 3: Cross multiply
   93,174.72x = 139,644.82 × 50,478.50
4. Step 4: Simplify right side
   93,174.72x = 7,049,061,458.58
5. Step 5: Solve for x
   x = 7,049,061,458.58/93,174.72
6. Step 6: Final answer
   x = 75,654.23