Finding the Fourth Proportional to 42,531.51, 58,595.22 and 30,574.17

Step by Step Solution

1. Step 1: Write the proportion equation
   42,531.51 : 58,595.22 = 30,574.17 : x
2. Step 2: Convert to fraction form
   42,531.51/58,595.22 = 30,574.17/x
3. Step 3: Cross multiply
   42,531.51x = 58,595.22 × 30,574.17
4. Step 4: Simplify right side
   42,531.51x = 1,791,500,217.47
5. Step 5: Solve for x
   x = 1,791,500,217.47/42,531.51
6. Step 6: Final answer
   x = 42,121.72