Finding the Fourth Proportional to 161,010.72, 222,205.28 and 93,030.72

Step by Step Solution

1. Step 1: Write the proportion equation
   161,010.72 : 222,205.28 = 93,030.72 : x
2. Step 2: Convert to fraction form
   161,010.72/222,205.28 = 93,030.72/x
3. Step 3: Cross multiply
   161,010.72x = 222,205.28 × 93,030.72
4. Step 4: Simplify right side
   161,010.72x = 20,671,917,186.20
5. Step 5: Solve for x
   x = 20,671,917,186.20/161,010.72
6. Step 6: Final answer
   x = 128,388.45