Finding the Fourth Proportional to 112,333, 155,019.54 and 72,589

Step by Step Solution

1. Step 1: Write the proportion equation
   112,333 : 155,019.54 = 72,589 : x
2. Step 2: Convert to fraction form
   112,333/155,019.54 = 72,589/x
3. Step 3: Cross multiply
   112,333x = 155,019.54 × 72,589
4. Step 4: Simplify right side
   112,333x = 11,252,713,389.06
5. Step 5: Solve for x
   x = 11,252,713,389.06/112,333
6. Step 6: Final answer
   x = 100,172.82