Finding the Fourth Proportional to 151,870.56, 227,854.56 and 72,990.48

Step by Step Solution

1. Step 1: Write the proportion equation
   151,870.56 : 227,854.56 = 72,990.48 : x
2. Step 2: Convert to fraction form
   151,870.56/227,854.56 = 72,990.48/x
3. Step 3: Cross multiply
   151,870.56x = 227,854.56 × 72,990.48
4. Step 4: Simplify right side
   151,870.56x = 16,631,213,704.59
5. Step 5: Solve for x
   x = 16,631,213,704.59/151,870.56
6. Step 6: Final answer
   x = 109,509.14