Finding the Fourth Proportional to 172,038.94, 258,095.28 and 59,722.72

Step by Step Solution

1. Step 1: Write the proportion equation
   172,038.94 : 258,095.28 = 59,722.72 : x
2. Step 2: Convert to fraction form
   172,038.94/258,095.28 = 59,722.72/x
3. Step 3: Cross multiply
   172,038.94x = 258,095.28 × 59,722.72
4. Step 4: Simplify right side
   172,038.94x = 15,414,152,140.76
5. Step 5: Solve for x
   x = 15,414,152,140.76/172,038.94
6. Step 6: Final answer
   x = 89,596.88