Finding the Fourth Proportional to 42,008.16, 57,973.68 and 23,145.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,008.16 : 57,973.68 = 23,145.60 : x
2. Step 2: Convert to fraction form
   42,008.16/57,973.68 = 23,145.60/x
3. Step 3: Cross multiply
   42,008.16x = 57,973.68 × 23,145.60
4. Step 4: Simplify right side
   42,008.16x = 1,341,835,607.81
5. Step 5: Solve for x
   x = 1,341,835,607.81/42,008.16
6. Step 6: Final answer
   x = 31,942.26