Finding the Fourth Proportional to 151,499.80, 227,055.30 and 72,443.80

Step by Step Solution

1. Step 1: Write the proportion equation
   151,499.80 : 227,055.30 = 72,443.80 : x
2. Step 2: Convert to fraction form
   151,499.80/227,055.30 = 72,443.80/x
3. Step 3: Cross multiply
   151,499.80x = 227,055.30 × 72,443.80
4. Step 4: Simplify right side
   151,499.80x = 16,448,748,742.14
5. Step 5: Solve for x
   x = 16,448,748,742.14/151,499.80
6. Step 6: Final answer
   x = 108,572.74