Finding the Fourth Proportional to 78,777.85, 108,713.37 and 42,967.75

Step by Step Solution

1. Step 1: Write the proportion equation
   78,777.85 : 108,713.37 = 42,967.75 : x
2. Step 2: Convert to fraction form
   78,777.85/108,713.37 = 42,967.75/x
3. Step 3: Cross multiply
   78,777.85x = 108,713.37 × 42,967.75
4. Step 4: Simplify right side
   78,777.85x = 4,671,168,903.82
5. Step 5: Solve for x
   x = 4,671,168,903.82/78,777.85
6. Step 6: Final answer
   x = 59,295.46