Finding the Fourth Proportional to 42,698.96, 58,920.42 and 29,281.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,698.96 : 58,920.42 = 29,281.72 : x
2. Step 2: Convert to fraction form
   42,698.96/58,920.42 = 29,281.72/x
3. Step 3: Cross multiply
   42,698.96x = 58,920.42 × 29,281.72
4. Step 4: Simplify right side
   42,698.96x = 1,725,291,240.72
5. Step 5: Solve for x
   x = 1,725,291,240.72/42,698.96
6. Step 6: Final answer
   x = 40,405.93