Finding the Fourth Proportional to 301,969.98, 453,020.34 and 91,623.78

Step by Step Solution

1. Step 1: Write the proportion equation
   301,969.98 : 453,020.34 = 91,623.78 : x
2. Step 2: Convert to fraction form
   301,969.98/453,020.34 = 91,623.78/x
3. Step 3: Cross multiply
   301,969.98x = 453,020.34 × 91,623.78
4. Step 4: Simplify right side
   301,969.98x = 41,507,435,967.69
5. Step 5: Solve for x
   x = 41,507,435,967.69/301,969.98
6. Step 6: Final answer
   x = 137,455.50