Finding the Fourth Proportional to 125,870.42, 188,806.13 and 50,991.98

Step by Step Solution

1. Step 1: Write the proportion equation
   125,870.42 : 188,806.13 = 50,991.98 : x
2. Step 2: Convert to fraction form
   125,870.42/188,806.13 = 50,991.98/x
3. Step 3: Cross multiply
   125,870.42x = 188,806.13 × 50,991.98
4. Step 4: Simplify right side
   125,870.42x = 9,627,598,404.84
5. Step 5: Solve for x
   x = 9,627,598,404.84/125,870.42
6. Step 6: Final answer
   x = 76,488.17