Finding the Fourth Proportional to 150,913, 208,266.42 and 83,845

Step by Step Solution

1. Step 1: Write the proportion equation
   150,913 : 208,266.42 = 83,845 : x
2. Step 2: Convert to fraction form
   150,913/208,266.42 = 83,845/x
3. Step 3: Cross multiply
   150,913x = 208,266.42 × 83,845
4. Step 4: Simplify right side
   150,913x = 17,462,097,984.90
5. Step 5: Solve for x
   x = 17,462,097,984.90/150,913
6. Step 6: Final answer
   x = 115,709.70