Finding the Fourth Proportional to 78,777.35, 108,712.68 and 42,967.25

Step by Step Solution

1. Step 1: Write the proportion equation
   78,777.35 : 108,712.68 = 42,967.25 : x
2. Step 2: Convert to fraction form
   78,777.35/108,712.68 = 42,967.25/x
3. Step 3: Cross multiply
   78,777.35x = 108,712.68 × 42,967.25
4. Step 4: Simplify right side
   78,777.35x = 4,671,085,171.51
5. Step 5: Solve for x
   x = 4,671,085,171.51/78,777.35
6. Step 6: Final answer
   x = 59,294.77