Finding the Fourth Proportional to 31,490.21, 43,459.55 and 23,518.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,490.21 : 43,459.55 = 23,518.59 : x
2. Step 2: Convert to fraction form
   31,490.21/43,459.55 = 23,518.59/x
3. Step 3: Cross multiply
   31,490.21x = 43,459.55 × 23,518.59
4. Step 4: Simplify right side
   31,490.21x = 1,022,107,522.42
5. Step 5: Solve for x
   x = 1,022,107,522.42/31,490.21
6. Step 6: Final answer
   x = 32,457.95