Finding the Fourth Proportional to 76,793, 105,974.85 and 42,803.67

Step by Step Solution

1. Step 1: Write the proportion equation
   76,793 : 105,974.85 = 42,803.67 : x
2. Step 2: Convert to fraction form
   76,793/105,974.85 = 42,803.67/x
3. Step 3: Cross multiply
   76,793x = 105,974.85 × 42,803.67
4. Step 4: Simplify right side
   76,793x = 4,536,112,507.70
5. Step 5: Solve for x
   x = 4,536,112,507.70/76,793
6. Step 6: Final answer
   x = 59,069.35