Finding the Fourth Proportional to 172,873.76, 259,156.73 and 67,766.00

Step by Step Solution

1. Step 1: Write the proportion equation
   172,873.76 : 259,156.73 = 67,766.00 : x
2. Step 2: Convert to fraction form
   172,873.76/259,156.73 = 67,766.00/x
3. Step 3: Cross multiply
   172,873.76x = 259,156.73 × 67,766.00
4. Step 4: Simplify right side
   172,873.76x = 17,562,013,838.81
5. Step 5: Solve for x
   x = 17,562,013,838.81/172,873.76
6. Step 6: Final answer
   x = 101,588.66