Finding the Fourth Proportional to 125,976.33, 173,834.72 and 77,570.50

Step by Step Solution

1. Step 1: Write the proportion equation
   125,976.33 : 173,834.72 = 77,570.50 : x
2. Step 2: Convert to fraction form
   125,976.33/173,834.72 = 77,570.50/x
3. Step 3: Cross multiply
   125,976.33x = 173,834.72 × 77,570.50
4. Step 4: Simplify right side
   125,976.33x = 13,484,445,806.78
5. Step 5: Solve for x
   x = 13,484,445,806.78/125,976.33
6. Step 6: Final answer
   x = 107,039.52