Finding the Fourth Proportional to 31,485.58, 43,424.27 and 22,978.14

Step by Step Solution

1. Step 1: Write the proportion equation
   31,485.58 : 43,424.27 = 22,978.14 : x
2. Step 2: Convert to fraction form
   31,485.58/43,424.27 = 22,978.14/x
3. Step 3: Cross multiply
   31,485.58x = 43,424.27 × 22,978.14
4. Step 4: Simplify right side
   31,485.58x = 997,808,955.46
5. Step 5: Solve for x
   x = 997,808,955.46/31,485.58
6. Step 6: Final answer
   x = 31,690.98