Finding the Fourth Proportional to 155,868.86, 233,837.94 and 72,717.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,868.86 : 233,837.94 = 72,717.50 : x
2. Step 2: Convert to fraction form
   155,868.86/233,837.94 = 72,717.50/x
3. Step 3: Cross multiply
   155,868.86x = 233,837.94 × 72,717.50
4. Step 4: Simplify right side
   155,868.86x = 17,004,110,401.95
5. Step 5: Solve for x
   x = 17,004,110,401.95/155,868.86
6. Step 6: Final answer
   x = 109,092.42