Finding the Fourth Proportional to 208,514.91, 287,724.82 and 148,063.50

Step by Step Solution

1. Step 1: Write the proportion equation
   208,514.91 : 287,724.82 = 148,063.50 : x
2. Step 2: Convert to fraction form
   208,514.91/287,724.82 = 148,063.50/x
3. Step 3: Cross multiply
   208,514.91x = 287,724.82 × 148,063.50
4. Step 4: Simplify right side
   208,514.91x = 42,601,543,886.07
5. Step 5: Solve for x
   x = 42,601,543,886.07/208,514.91
6. Step 6: Final answer
   x = 204,309.34