Finding the Fourth Proportional to 152,112.16, 227,978.16 and 73,205.20

Step by Step Solution

1. Step 1: Write the proportion equation
   152,112.16 : 227,978.16 = 73,205.20 : x
2. Step 2: Convert to fraction form
   152,112.16/227,978.16 = 73,205.20/x
3. Step 3: Cross multiply
   152,112.16x = 227,978.16 × 73,205.20
4. Step 4: Simplify right side
   152,112.16x = 16,689,186,798.43
5. Step 5: Solve for x
   x = 16,689,186,798.43/152,112.16
6. Step 6: Final answer
   x = 109,716.32