Finding the Fourth Proportional to 42,048.61, 63,089.75 and 17,090.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,048.61 : 63,089.75 = 17,090.58 : x
2. Step 2: Convert to fraction form
   42,048.61/63,089.75 = 17,090.58/x
3. Step 3: Cross multiply
   42,048.61x = 63,089.75 × 17,090.58
4. Step 4: Simplify right side
   42,048.61x = 1,078,240,419.56
5. Step 5: Solve for x
   x = 1,078,240,419.56/42,048.61
6. Step 6: Final answer
   x = 25,642.71