Finding the Fourth Proportional to 72,983.58, 100,715.04 and 42,789.01

Step by Step Solution

1. Step 1: Write the proportion equation
   72,983.58 : 100,715.04 = 42,789.01 : x
2. Step 2: Convert to fraction form
   72,983.58/100,715.04 = 42,789.01/x
3. Step 3: Cross multiply
   72,983.58x = 100,715.04 × 42,789.01
4. Step 4: Simplify right side
   72,983.58x = 4,309,496,350.14
5. Step 5: Solve for x
   x = 4,309,496,350.14/72,983.58
6. Step 6: Final answer
   x = 59,047.48