Finding the Fourth Proportional to 837,131.10, 1,155,227.31 and 455,167.50

Step by Step Solution

1. Step 1: Write the proportion equation
   837,131.10 : 1,155,227.31 = 455,167.50 : x
2. Step 2: Convert to fraction form
   837,131.10/1,155,227.31 = 455,167.50/x
3. Step 3: Cross multiply
   837,131.10x = 1,155,227.31 × 455,167.50
4. Step 4: Simplify right side
   837,131.10x = 525,821,926,624.43
5. Step 5: Solve for x
   x = 525,821,926,624.43/837,131.10
6. Step 6: Final answer
   x = 628,123.75