Finding the Fourth Proportional to 142,478.29, 213,550.48 and 79,268.59

Step by Step Solution

1. Step 1: Write the proportion equation
   142,478.29 : 213,550.48 = 79,268.59 : x
2. Step 2: Convert to fraction form
   142,478.29/213,550.48 = 79,268.59/x
3. Step 3: Cross multiply
   142,478.29x = 213,550.48 × 79,268.59
4. Step 4: Simplify right side
   142,478.29x = 16,927,845,443.42
5. Step 5: Solve for x
   x = 16,927,845,443.42/142,478.29
6. Step 6: Final answer
   x = 118,810.00