Finding the Fourth Proportional to 78,812.10, 118,228.95 and 26,216.10

Step by Step Solution

1. Step 1: Write the proportion equation
   78,812.10 : 118,228.95 = 26,216.10 : x
2. Step 2: Convert to fraction form
   78,812.10/118,228.95 = 26,216.10/x
3. Step 3: Cross multiply
   78,812.10x = 118,228.95 × 26,216.10
4. Step 4: Simplify right side
   78,812.10x = 3,099,501,976.10
5. Step 5: Solve for x
   x = 3,099,501,976.10/78,812.10
6. Step 6: Final answer
   x = 39,327.74