Finding the Fourth Proportional to 35,109.62, 52,671.28 and 12,923.18

Step by Step Solution

1. Step 1: Write the proportion equation
   35,109.62 : 52,671.28 = 12,923.18 : x
2. Step 2: Convert to fraction form
   35,109.62/52,671.28 = 12,923.18/x
3. Step 3: Cross multiply
   35,109.62x = 52,671.28 × 12,923.18
4. Step 4: Simplify right side
   35,109.62x = 680,680,432.27
5. Step 5: Solve for x
   x = 680,680,432.27/35,109.62
6. Step 6: Final answer
   x = 19,387.29