Finding the Fourth Proportional to 172,778.18, 259,149.75 and 46,402.00

Step by Step Solution

1. Step 1: Write the proportion equation
   172,778.18 : 259,149.75 = 46,402.00 : x
2. Step 2: Convert to fraction form
   172,778.18/259,149.75 = 46,402.00/x
3. Step 3: Cross multiply
   172,778.18x = 259,149.75 × 46,402.00
4. Step 4: Simplify right side
   172,778.18x = 12,025,066,849.43
5. Step 5: Solve for x
   x = 12,025,066,849.43/172,778.18
6. Step 6: Final answer
   x = 69,598.30