Finding the Fourth Proportional to 42,858.64, 59,105.46 and 29,406.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,858.64 : 59,105.46 = 29,406.16 : x
2. Step 2: Convert to fraction form
   42,858.64/59,105.46 = 29,406.16/x
3. Step 3: Cross multiply
   42,858.64x = 59,105.46 × 29,406.16
4. Step 4: Simplify right side
   42,858.64x = 1,738,064,613.63
5. Step 5: Solve for x
   x = 1,738,064,613.63/42,858.64
6. Step 6: Final answer
   x = 40,553.42