Finding the Fourth Proportional to 172,969.99, 259,433.49 and 46,620.12

Step by Step Solution

1. Step 1: Write the proportion equation
   172,969.99 : 259,433.49 = 46,620.12 : x
2. Step 2: Convert to fraction form
   172,969.99/259,433.49 = 46,620.12/x
3. Step 3: Cross multiply
   172,969.99x = 259,433.49 × 46,620.12
4. Step 4: Simplify right side
   172,969.99x = 12,094,820,435.82
5. Step 5: Solve for x
   x = 12,094,820,435.82/172,969.99
6. Step 6: Final answer
   x = 69,924.39