Finding the Fourth Proportional to 91,641.15, 126,440.73 and 55,847.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91,641.15 : 126,440.73 = 55,847.25 : x
2. Step 2: Convert to fraction form
   91,641.15/126,440.73 = 55,847.25/x
3. Step 3: Cross multiply
   91,641.15x = 126,440.73 × 55,847.25
4. Step 4: Simplify right side
   91,641.15x = 7,061,367,058.49
5. Step 5: Solve for x
   x = 7,061,367,058.49/91,641.15
6. Step 6: Final answer
   x = 77,054.54