Finding the Fourth Proportional to 83,511.32, 125,279.94 and 28,103

Step by Step Solution

1. Step 1: Write the proportion equation
   83,511.32 : 125,279.94 = 28,103 : x
2. Step 2: Convert to fraction form
   83,511.32/125,279.94 = 28,103/x
3. Step 3: Cross multiply
   83,511.32x = 125,279.94 × 28,103
4. Step 4: Simplify right side
   83,511.32x = 3,520,742,153.82
5. Step 5: Solve for x
   x = 3,520,742,153.82/83,511.32
6. Step 6: Final answer
   x = 42,158.86