Finding the Fourth Proportional to 95,550.57, 143,326.16 and 28,991.25

Step by Step Solution

1. Step 1: Write the proportion equation
   95,550.57 : 143,326.16 = 28,991.25 : x
2. Step 2: Convert to fraction form
   95,550.57/143,326.16 = 28,991.25/x
3. Step 3: Cross multiply
   95,550.57x = 143,326.16 × 28,991.25
4. Step 4: Simplify right side
   95,550.57x = 4,155,204,499.86
5. Step 5: Solve for x
   x = 4,155,204,499.86/95,550.57
6. Step 6: Final answer
   x = 43,486.97