Finding the Fourth Proportional to 218,010.33, 326,732.54 and 97,978.59

Step by Step Solution

1. Step 1: Write the proportion equation
   218,010.33 : 326,732.54 = 97,978.59 : x
2. Step 2: Convert to fraction form
   218,010.33/326,732.54 = 97,978.59/x
3. Step 3: Cross multiply
   218,010.33x = 326,732.54 × 97,978.59
4. Step 4: Simplify right side
   218,010.33x = 32,012,793,086.43
5. Step 5: Solve for x
   x = 32,012,793,086.43/218,010.33
6. Step 6: Final answer
   x = 146,840.72