Finding the Fourth Proportional to 31,303.07, 43,199.33 and 17,155.91

Step by Step Solution

1. Step 1: Write the proportion equation
   31,303.07 : 43,199.33 = 17,155.91 : x
2. Step 2: Convert to fraction form
   31,303.07/43,199.33 = 17,155.91/x
3. Step 3: Cross multiply
   31,303.07x = 43,199.33 × 17,155.91
4. Step 4: Simplify right side
   31,303.07x = 741,123,515.76
5. Step 5: Solve for x
   x = 741,123,515.76/31,303.07
6. Step 6: Final answer
   x = 23,675.75