Finding the Fourth Proportional to 42,105.68, 58,109 and 40,796.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,105.68 : 58,109 = 40,796.96 : x
2. Step 2: Convert to fraction form
   42,105.68/58,109 = 40,796.96/x
3. Step 3: Cross multiply
   42,105.68x = 58,109 × 40,796.96
4. Step 4: Simplify right side
   42,105.68x = 2,370,670,548.64
5. Step 5: Solve for x
   x = 2,370,670,548.64/42,105.68
6. Step 6: Final answer
   x = 56,302.87