Finding the Fourth Proportional to 173,026.50, 259,578.18 and 53,100.12

Step by Step Solution

1. Step 1: Write the proportion equation
   173,026.50 : 259,578.18 = 53,100.12 : x
2. Step 2: Convert to fraction form
   173,026.50/259,578.18 = 53,100.12/x
3. Step 3: Cross multiply
   173,026.50x = 259,578.18 × 53,100.12
4. Step 4: Simplify right side
   173,026.50x = 13,783,632,507.38
5. Step 5: Solve for x
   x = 13,783,632,507.38/173,026.50
6. Step 6: Final answer
   x = 79,661.97