Finding the Fourth Proportional to 42,111.63, 58,114.16 and 22,991.43

Step by Step Solution

1. Step 1: Write the proportion equation
   42,111.63 : 58,114.16 = 22,991.43 : x
2. Step 2: Convert to fraction form
   42,111.63/58,114.16 = 22,991.43/x
3. Step 3: Cross multiply
   42,111.63x = 58,114.16 × 22,991.43
4. Step 4: Simplify right side
   42,111.63x = 1,336,127,526.69
5. Step 5: Solve for x
   x = 1,336,127,526.69/42,111.63
6. Step 6: Final answer
   x = 31,728.23