Finding the Fourth Proportional to 130,458.80, 195,770.56 and 55,578.98

Step by Step Solution

1. Step 1: Write the proportion equation
   130,458.80 : 195,770.56 = 55,578.98 : x
2. Step 2: Convert to fraction form
   130,458.80/195,770.56 = 55,578.98/x
3. Step 3: Cross multiply
   130,458.80x = 195,770.56 × 55,578.98
4. Step 4: Simplify right side
   130,458.80x = 10,880,728,038.83
5. Step 5: Solve for x
   x = 10,880,728,038.83/130,458.80
6. Step 6: Final answer
   x = 83,403.56