Finding the Fourth Proportional to 42,111.47, 58,111.34 and 22,987.44

Step by Step Solution

1. Step 1: Write the proportion equation
   42,111.47 : 58,111.34 = 22,987.44 : x
2. Step 2: Convert to fraction form
   42,111.47/58,111.34 = 22,987.44/x
3. Step 3: Cross multiply
   42,111.47x = 58,111.34 × 22,987.44
4. Step 4: Simplify right side
   42,111.47x = 1,335,830,826.63
5. Step 5: Solve for x
   x = 1,335,830,826.63/42,111.47
6. Step 6: Final answer
   x = 31,721.31