Finding the Fourth Proportional to 31,299.86, 43,189.58 and 17,870.26

Step by Step Solution

1. Step 1: Write the proportion equation
   31,299.86 : 43,189.58 = 17,870.26 : x
2. Step 2: Convert to fraction form
   31,299.86/43,189.58 = 17,870.26/x
3. Step 3: Cross multiply
   31,299.86x = 43,189.58 × 17,870.26
4. Step 4: Simplify right side
   31,299.86x = 771,809,023.89
5. Step 5: Solve for x
   x = 771,809,023.89/31,299.86
6. Step 6: Final answer
   x = 24,658.55