Finding the Fourth Proportional to 72,764.19, 109,141.83 and 42,795

Step by Step Solution

1. Step 1: Write the proportion equation
   72,764.19 : 109,141.83 = 42,795 : x
2. Step 2: Convert to fraction form
   72,764.19/109,141.83 = 42,795/x
3. Step 3: Cross multiply
   72,764.19x = 109,141.83 × 42,795
4. Step 4: Simplify right side
   72,764.19x = 4,670,724,614.85
5. Step 5: Solve for x
   x = 4,670,724,614.85/72,764.19
6. Step 6: Final answer
   x = 64,189.88