Finding the Fourth Proportional to 31,423.72, 43,360.54 and 19,482.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,423.72 : 43,360.54 = 19,482.72 : x
2. Step 2: Convert to fraction form
   31,423.72/43,360.54 = 19,482.72/x
3. Step 3: Cross multiply
   31,423.72x = 43,360.54 × 19,482.72
4. Step 4: Simplify right side
   31,423.72x = 844,781,259.87
5. Step 5: Solve for x
   x = 844,781,259.87/31,423.72
6. Step 6: Final answer
   x = 26,883.55