Finding the Fourth Proportional to 49,123.56, 73,623.72 and 21,010.62

Step by Step Solution

1. Step 1: Write the proportion equation
   49,123.56 : 73,623.72 = 21,010.62 : x
2. Step 2: Convert to fraction form
   49,123.56/73,623.72 = 21,010.62/x
3. Step 3: Cross multiply
   49,123.56x = 73,623.72 × 21,010.62
4. Step 4: Simplify right side
   49,123.56x = 1,546,880,003.91
5. Step 5: Solve for x
   x = 1,546,880,003.91/49,123.56
6. Step 6: Final answer
   x = 31,489.57