Finding the Fourth Proportional to 78,236.83, 107,966.88 and 42,426.83

Step by Step Solution

1. Step 1: Write the proportion equation
   78,236.83 : 107,966.88 = 42,426.83 : x
2. Step 2: Convert to fraction form
   78,236.83/107,966.88 = 42,426.83/x
3. Step 3: Cross multiply
   78,236.83x = 107,966.88 × 42,426.83
4. Step 4: Simplify right side
   78,236.83x = 4,580,692,463.39
5. Step 5: Solve for x
   x = 4,580,692,463.39/78,236.83
6. Step 6: Final answer
   x = 58,549.06