Finding the Fourth Proportional to 31,507.56, 43,488.83 and 18,598.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,507.56 : 43,488.83 = 18,598.18 : x
2. Step 2: Convert to fraction form
   31,507.56/43,488.83 = 18,598.18/x
3. Step 3: Cross multiply
   31,507.56x = 43,488.83 × 18,598.18
4. Step 4: Simplify right side
   31,507.56x = 808,813,088.33
5. Step 5: Solve for x
   x = 808,813,088.33/31,507.56
6. Step 6: Final answer
   x = 25,670.45