Finding the Fourth Proportional to 72,243.50, 99,716.06 and 42,034.65

Step by Step Solution

1. Step 1: Write the proportion equation
   72,243.50 : 99,716.06 = 42,034.65 : x
2. Step 2: Convert to fraction form
   72,243.50/99,716.06 = 42,034.65/x
3. Step 3: Cross multiply
   72,243.50x = 99,716.06 × 42,034.65
4. Step 4: Simplify right side
   72,243.50x = 4,191,529,471.31
5. Step 5: Solve for x
   x = 4,191,529,471.31/72,243.50
6. Step 6: Final answer
   x = 58,019.47