Finding the Fourth Proportional to 165,152.40, 227,910 and 89,700.72

Step by Step Solution

1. Step 1: Write the proportion equation
   165,152.40 : 227,910 = 89,700.72 : x
2. Step 2: Convert to fraction form
   165,152.40/227,910 = 89,700.72/x
3. Step 3: Cross multiply
   165,152.40x = 227,910 × 89,700.72
4. Step 4: Simplify right side
   165,152.40x = 20,443,691,095.20
5. Step 5: Solve for x
   x = 20,443,691,095.20/165,152.40
6. Step 6: Final answer
   x = 123,786.82