Finding the Fourth Proportional to 110,030.40, 151,884.72 and 72,316.80

Step by Step Solution

1. Step 1: Write the proportion equation
   110,030.40 : 151,884.72 = 72,316.80 : x
2. Step 2: Convert to fraction form
   110,030.40/151,884.72 = 72,316.80/x
3. Step 3: Cross multiply
   110,030.40x = 151,884.72 × 72,316.80
4. Step 4: Simplify right side
   110,030.40x = 10,983,816,919.30
5. Step 5: Solve for x
   x = 10,983,816,919.30/110,030.40
6. Step 6: Final answer
   x = 99,825.29