Finding the Fourth Proportional to 105,577.68, 158,346.72 and 52,973.04

Step by Step Solution

1. Step 1: Write the proportion equation
   105,577.68 : 158,346.72 = 52,973.04 : x
2. Step 2: Convert to fraction form
   105,577.68/158,346.72 = 52,973.04/x
3. Step 3: Cross multiply
   105,577.68x = 158,346.72 × 52,973.04
4. Step 4: Simplify right side
   105,577.68x = 8,388,107,132.43
5. Step 5: Solve for x
   x = 8,388,107,132.43/105,577.68
6. Step 6: Final answer
   x = 79,449.63