Finding the Fourth Proportional to 49,123.88, 73,624.16 and 21,010.86

Step by Step Solution

1. Step 1: Write the proportion equation
   49,123.88 : 73,624.16 = 21,010.86 : x
2. Step 2: Convert to fraction form
   49,123.88/73,624.16 = 21,010.86/x
3. Step 3: Cross multiply
   49,123.88x = 73,624.16 × 21,010.86
4. Step 4: Simplify right side
   49,123.88x = 1,546,906,813.32
5. Step 5: Solve for x
   x = 1,546,906,813.32/49,123.88
6. Step 6: Final answer
   x = 31,489.92