Finding the Fourth Proportional to 73,781.64, 101,562.72 and 55,845

Step by Step Solution

1. Step 1: Write the proportion equation
   73,781.64 : 101,562.72 = 55,845 : x
2. Step 2: Convert to fraction form
   73,781.64/101,562.72 = 55,845/x
3. Step 3: Cross multiply
   73,781.64x = 101,562.72 × 55,845
4. Step 4: Simplify right side
   73,781.64x = 5,671,770,098.40
5. Step 5: Solve for x
   x = 5,671,770,098.40/73,781.64
6. Step 6: Final answer
   x = 76,872.38