Finding the Fourth Proportional to 165,918.72, 228,978.72 and 94,298.88

Step by Step Solution

1. Step 1: Write the proportion equation
   165,918.72 : 228,978.72 = 94,298.88 : x
2. Step 2: Convert to fraction form
   165,918.72/228,978.72 = 94,298.88/x
3. Step 3: Cross multiply
   165,918.72x = 228,978.72 × 94,298.88
4. Step 4: Simplify right side
   165,918.72x = 21,592,436,839.83
5. Step 5: Solve for x
   x = 21,592,436,839.83/165,918.72
6. Step 6: Final answer
   x = 130,138.64