Finding the Fourth Proportional to 42,806.31, 64,167.34 and 25,014.39

Step by Step Solution

1. Step 1: Write the proportion equation
   42,806.31 : 64,167.34 = 25,014.39 : x
2. Step 2: Convert to fraction form
   42,806.31/64,167.34 = 25,014.39/x
3. Step 3: Cross multiply
   42,806.31x = 64,167.34 × 25,014.39
4. Step 4: Simplify right side
   42,806.31x = 1,605,106,868.02
5. Step 5: Solve for x
   x = 1,605,106,868.02/42,806.31
6. Step 6: Final answer
   x = 37,496.97