Finding the Fourth Proportional to 50,495.56, 69,680.91 and 28,980.34

Step by Step Solution

1. Step 1: Write the proportion equation
   50,495.56 : 69,680.91 = 28,980.34 : x
2. Step 2: Convert to fraction form
   50,495.56/69,680.91 = 28,980.34/x
3. Step 3: Cross multiply
   50,495.56x = 69,680.91 × 28,980.34
4. Step 4: Simplify right side
   50,495.56x = 2,019,376,463.31
5. Step 5: Solve for x
   x = 2,019,376,463.31/50,495.56
6. Step 6: Final answer
   x = 39,991.17