Finding the Fourth Proportional to 150,938.28, 208,294.86 and 83,870.28

Step by Step Solution

1. Step 1: Write the proportion equation
   150,938.28 : 208,294.86 = 83,870.28 : x
2. Step 2: Convert to fraction form
   150,938.28/208,294.86 = 83,870.28/x
3. Step 3: Cross multiply
   150,938.28x = 208,294.86 × 83,870.28
4. Step 4: Simplify right side
   150,938.28x = 17,469,748,230.76
5. Step 5: Solve for x
   x = 17,469,748,230.76/150,938.28
6. Step 6: Final answer
   x = 115,741.01