Finding the Fourth Proportional to 84,667.52, 126,912.37 and 28,488.12

Step by Step Solution

1. Step 1: Write the proportion equation
   84,667.52 : 126,912.37 = 28,488.12 : x
2. Step 2: Convert to fraction form
   84,667.52/126,912.37 = 28,488.12/x
3. Step 3: Cross multiply
   84,667.52x = 126,912.37 × 28,488.12
4. Step 4: Simplify right side
   84,667.52x = 3,615,495,072.11
5. Step 5: Solve for x
   x = 3,615,495,072.11/84,667.52
6. Step 6: Final answer
   x = 42,702.27