Finding the Fourth Proportional to 105,551.32, 145,653.24 and 57,796.96

Step by Step Solution

1. Step 1: Write the proportion equation
   105,551.32 : 145,653.24 = 57,796.96 : x
2. Step 2: Convert to fraction form
   105,551.32/145,653.24 = 57,796.96/x
3. Step 3: Cross multiply
   105,551.32x = 145,653.24 × 57,796.96
4. Step 4: Simplify right side
   105,551.32x = 8,418,314,486.15
5. Step 5: Solve for x
   x = 8,418,314,486.15/105,551.32
6. Step 6: Final answer
   x = 79,755.65