Finding the Fourth Proportional to 150,815, 208,124.70 and 83,747

Step by Step Solution

1. Step 1: Write the proportion equation
   150,815 : 208,124.70 = 83,747 : x
2. Step 2: Convert to fraction form
   150,815/208,124.70 = 83,747/x
3. Step 3: Cross multiply
   150,815x = 208,124.70 × 83,747
4. Step 4: Simplify right side
   150,815x = 17,429,819,250.90
5. Step 5: Solve for x
   x = 17,429,819,250.90/150,815
6. Step 6: Final answer
   x = 115,570.86