Finding the Fourth Proportional to 151,426.76, 208,978.08 and 83,443.62

Step by Step Solution

1. Step 1: Write the proportion equation
   151,426.76 : 208,978.08 = 83,443.62 : x
2. Step 2: Convert to fraction form
   151,426.76/208,978.08 = 83,443.62/x
3. Step 3: Cross multiply
   151,426.76x = 208,978.08 × 83,443.62
4. Step 4: Simplify right side
   151,426.76x = 17,437,887,182.94
5. Step 5: Solve for x
   x = 17,437,887,182.94/151,426.76
6. Step 6: Final answer
   x = 115,157.23