Finding the Fourth Proportional to 91,608.81, 126,420.23 and 55,798.89

Step by Step Solution

1. Step 1: Write the proportion equation
   91,608.81 : 126,420.23 = 55,798.89 : x
2. Step 2: Convert to fraction form
   91,608.81/126,420.23 = 55,798.89/x
3. Step 3: Cross multiply
   91,608.81x = 126,420.23 × 55,798.89
4. Step 4: Simplify right side
   91,608.81x = 7,054,108,507.54
5. Step 5: Solve for x
   x = 7,054,108,507.54/91,608.81
6. Step 6: Final answer
   x = 77,002.51