Finding the Fourth Proportional to 42,048.84, 57,959.74 and 30,700.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,048.84 : 57,959.74 = 30,700.36 : x
2. Step 2: Convert to fraction form
   42,048.84/57,959.74 = 30,700.36/x
3. Step 3: Cross multiply
   42,048.84x = 57,959.74 × 30,700.36
4. Step 4: Simplify right side
   42,048.84x = 1,779,384,994.33
5. Step 5: Solve for x
   x = 1,779,384,994.33/42,048.84
6. Step 6: Final answer
   x = 42,317.10