Finding the Fourth Proportional to 78,806.28, 108,737.78 and 46,978.14

Step by Step Solution

1. Step 1: Write the proportion equation
   78,806.28 : 108,737.78 = 46,978.14 : x
2. Step 2: Convert to fraction form
   78,806.28/108,737.78 = 46,978.14/x
3. Step 3: Cross multiply
   78,806.28x = 108,737.78 × 46,978.14
4. Step 4: Simplify right side
   78,806.28x = 5,108,298,652.13
5. Step 5: Solve for x
   x = 5,108,298,652.13/78,806.28
6. Step 6: Final answer
   x = 64,820.96