Finding the Fourth Proportional to 31,045.47, 42,826.48 and 18,113.01

Step by Step Solution

1. Step 1: Write the proportion equation
   31,045.47 : 42,826.48 = 18,113.01 : x
2. Step 2: Convert to fraction form
   31,045.47/42,826.48 = 18,113.01/x
3. Step 3: Cross multiply
   31,045.47x = 42,826.48 × 18,113.01
4. Step 4: Simplify right side
   31,045.47x = 775,716,460.50
5. Step 5: Solve for x
   x = 775,716,460.50/31,045.47
6. Step 6: Final answer
   x = 24,986.46