Finding the Fourth Proportional to 78,316.92, 108,077.46 and 42,506.94

Step by Step Solution

1. Step 1: Write the proportion equation
   78,316.92 : 108,077.46 = 42,506.94 : x
2. Step 2: Convert to fraction form
   78,316.92/108,077.46 = 42,506.94/x
3. Step 3: Cross multiply
   78,316.92x = 108,077.46 × 42,506.94
4. Step 4: Simplify right side
   78,316.92x = 4,594,041,441.56
5. Step 5: Solve for x
   x = 4,594,041,441.56/78,316.92
6. Step 6: Final answer
   x = 58,659.63