Finding the Fourth Proportional to 42,720.30, 58,953.96 and 23,857.43

Step by Step Solution

1. Step 1: Write the proportion equation
   42,720.30 : 58,953.96 = 23,857.43 : x
2. Step 2: Convert to fraction form
   42,720.30/58,953.96 = 23,857.43/x
3. Step 3: Cross multiply
   42,720.30x = 58,953.96 × 23,857.43
4. Step 4: Simplify right side
   42,720.30x = 1,406,489,679.15
5. Step 5: Solve for x
   x = 1,406,489,679.15/42,720.30
6. Step 6: Final answer
   x = 32,923.22