Finding the Fourth Proportional to 130,168.88, 179,598.60 and 76,436.72

Step by Step Solution

1. Step 1: Write the proportion equation
   130,168.88 : 179,598.60 = 76,436.72 : x
2. Step 2: Convert to fraction form
   130,168.88/179,598.60 = 76,436.72/x
3. Step 3: Cross multiply
   130,168.88x = 179,598.60 × 76,436.72
4. Step 4: Simplify right side
   130,168.88x = 13,727,927,900.59
5. Step 5: Solve for x
   x = 13,727,927,900.59/130,168.88
6. Step 6: Final answer
   x = 105,462.44