Finding the Fourth Proportional to 42,112.50, 58,112.74 and 22,988.47

Step by Step Solution

1. Step 1: Write the proportion equation
   42,112.50 : 58,112.74 = 22,988.47 : x
2. Step 2: Convert to fraction form
   42,112.50/58,112.74 = 22,988.47/x
3. Step 3: Cross multiply
   42,112.50x = 58,112.74 × 22,988.47
4. Step 4: Simplify right side
   42,112.50x = 1,335,922,574.60
5. Step 5: Solve for x
   x = 1,335,922,574.60/42,112.50
6. Step 6: Final answer
   x = 31,722.71