Finding the Fourth Proportional to 78,787.22, 108,727.06 and 42,977.39

Step by Step Solution

1. Step 1: Write the proportion equation
   78,787.22 : 108,727.06 = 42,977.39 : x
2. Step 2: Convert to fraction form
   78,787.22/108,727.06 = 42,977.39/x
3. Step 3: Cross multiply
   78,787.22x = 108,727.06 × 42,977.39
4. Step 4: Simplify right side
   78,787.22x = 4,672,805,261.17
5. Step 5: Solve for x
   x = 4,672,805,261.17/78,787.22
6. Step 6: Final answer
   x = 59,309.18