Finding the Fourth Proportional to 78,745.32, 108,666.58 and 42,936.03

Step by Step Solution

1. Step 1: Write the proportion equation
   78,745.32 : 108,666.58 = 42,936.03 : x
2. Step 2: Convert to fraction form
   78,745.32/108,666.58 = 42,936.03/x
3. Step 3: Cross multiply
   78,745.32x = 108,666.58 × 42,936.03
4. Step 4: Simplify right side
   78,745.32x = 4,665,711,538.88
5. Step 5: Solve for x
   x = 4,665,711,538.88/78,745.32
6. Step 6: Final answer
   x = 59,250.65