Finding the Fourth Proportional to 92,823.76, 139,213.34 and 42,855.85

Step by Step Solution

1. Step 1: Write the proportion equation
   92,823.76 : 139,213.34 = 42,855.85 : x
2. Step 2: Convert to fraction form
   92,823.76/139,213.34 = 42,855.85/x
3. Step 3: Cross multiply
   92,823.76x = 139,213.34 × 42,855.85
4. Step 4: Simplify right side
   92,823.76x = 5,966,106,017.04
5. Step 5: Solve for x
   x = 5,966,106,017.04/92,823.76
6. Step 6: Final answer
   x = 64,273.48