Finding the Fourth Proportional to 42,691.80, 58,912.24 and 23,830.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,691.80 : 58,912.24 = 23,830.12 : x
2. Step 2: Convert to fraction form
   42,691.80/58,912.24 = 23,830.12/x
3. Step 3: Cross multiply
   42,691.80x = 58,912.24 × 23,830.12
4. Step 4: Simplify right side
   42,691.80x = 1,403,885,748.67
5. Step 5: Solve for x
   x = 1,403,885,748.67/42,691.80
6. Step 6: Final answer
   x = 32,884.20