Finding the Fourth Proportional to 104,225.76, 155,575.89 and 89,529.12

Step by Step Solution

1. Step 1: Write the proportion equation
   104,225.76 : 155,575.89 = 89,529.12 : x
2. Step 2: Convert to fraction form
   104,225.76/155,575.89 = 89,529.12/x
3. Step 3: Cross multiply
   104,225.76x = 155,575.89 × 89,529.12
4. Step 4: Simplify right side
   104,225.76x = 13,928,572,524.92
5. Step 5: Solve for x
   x = 13,928,572,524.92/104,225.76
6. Step 6: Final answer
   x = 133,638.48