Finding the Fourth Proportional to 112,981.41, 155,928.18 and 65,234.69

Step by Step Solution

1. Step 1: Write the proportion equation
   112,981.41 : 155,928.18 = 65,234.69 : x
2. Step 2: Convert to fraction form
   112,981.41/155,928.18 = 65,234.69/x
3. Step 3: Cross multiply
   112,981.41x = 155,928.18 × 65,234.69
4. Step 4: Simplify right side
   112,981.41x = 10,171,925,704.92
5. Step 5: Solve for x
   x = 10,171,925,704.92/112,981.41
6. Step 6: Final answer
   x = 90,031.85