Finding the Fourth Proportional to 83,435.80, 124,992.42 and 46,387.48

Step by Step Solution

1. Step 1: Write the proportion equation
   83,435.80 : 124,992.42 = 46,387.48 : x
2. Step 2: Convert to fraction form
   83,435.80/124,992.42 = 46,387.48/x
3. Step 3: Cross multiply
   83,435.80x = 124,992.42 × 46,387.48
4. Step 4: Simplify right side
   83,435.80x = 5,798,083,382.90
5. Step 5: Solve for x
   x = 5,798,083,382.90/83,435.80
6. Step 6: Final answer
   x = 69,491.55