Finding the Fourth Proportional to 208,279.60, 287,426.00 and 112,786.37

Step by Step Solution

1. Step 1: Write the proportion equation
   208,279.60 : 287,426.00 = 112,786.37 : x
2. Step 2: Convert to fraction form
   208,279.60/287,426.00 = 112,786.37/x
3. Step 3: Cross multiply
   208,279.60x = 287,426.00 × 112,786.37
4. Step 4: Simplify right side
   208,279.60x = 32,417,733,182.56
5. Step 5: Solve for x
   x = 32,417,733,182.56/208,279.60
6. Step 6: Final answer
   x = 155,645.27