Finding the Fourth Proportional to 151,385.56, 208,928.37 and 83,409.37

Step by Step Solution

1. Step 1: Write the proportion equation
   151,385.56 : 208,928.37 = 83,409.37 : x
2. Step 2: Convert to fraction form
   151,385.56/208,928.37 = 83,409.37/x
3. Step 3: Cross multiply
   151,385.56x = 208,928.37 × 83,409.37
4. Step 4: Simplify right side
   151,385.56x = 17,426,583,716.83
5. Step 5: Solve for x
   x = 17,426,583,716.83/151,385.56
6. Step 6: Final answer
   x = 115,113.91