Finding the Fourth Proportional to 42,051.20, 58,042.56 and 29,479.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,051.20 : 58,042.56 = 29,479.04 : x
2. Step 2: Convert to fraction form
   42,051.20/58,042.56 = 29,479.04/x
3. Step 3: Cross multiply
   42,051.20x = 58,042.56 × 29,479.04
4. Step 4: Simplify right side
   42,051.20x = 1,711,038,947.94
5. Step 5: Solve for x
   x = 1,711,038,947.94/42,051.20
6. Step 6: Final answer
   x = 40,689.42