Finding the Fourth Proportional to 130,957.43, 196,271.78 and 55,989.50

Step by Step Solution

1. Step 1: Write the proportion equation
   130,957.43 : 196,271.78 = 55,989.50 : x
2. Step 2: Convert to fraction form
   130,957.43/196,271.78 = 55,989.50/x
3. Step 3: Cross multiply
   130,957.43x = 196,271.78 × 55,989.50
4. Step 4: Simplify right side
   130,957.43x = 10,989,157,565.00
5. Step 5: Solve for x
   x = 10,989,157,565.00/130,957.43
6. Step 6: Final answer
   x = 83,913.97