Finding the Fourth Proportional to 42,434.69, 58,107.17 and 40,761.63

Step by Step Solution

1. Step 1: Write the proportion equation
   42,434.69 : 58,107.17 = 40,761.63 : x
2. Step 2: Convert to fraction form
   42,434.69/58,107.17 = 40,761.63/x
3. Step 3: Cross multiply
   42,434.69x = 58,107.17 × 40,761.63
4. Step 4: Simplify right side
   42,434.69x = 2,368,543,065.79
5. Step 5: Solve for x
   x = 2,368,543,065.79/42,434.69
6. Step 6: Final answer
   x = 55,816.20