Finding the Fourth Proportional to 51,196.76, 70,655.61 and 28,543.04

Step by Step Solution

1. Step 1: Write the proportion equation
   51,196.76 : 70,655.61 = 28,543.04 : x
2. Step 2: Convert to fraction form
   51,196.76/70,655.61 = 28,543.04/x
3. Step 3: Cross multiply
   51,196.76x = 70,655.61 × 28,543.04
4. Step 4: Simplify right side
   51,196.76x = 2,016,725,902.45
5. Step 5: Solve for x
   x = 2,016,725,902.45/51,196.76
6. Step 6: Final answer
   x = 39,391.67