Finding the Fourth Proportional to 53,680.78, 74,086.31 and 32,460.20

Step by Step Solution

1. Step 1: Write the proportion equation
   53,680.78 : 74,086.31 = 32,460.20 : x
2. Step 2: Convert to fraction form
   53,680.78/74,086.31 = 32,460.20/x
3. Step 3: Cross multiply
   53,680.78x = 74,086.31 × 32,460.20
4. Step 4: Simplify right side
   53,680.78x = 2,404,856,428.40
5. Step 5: Solve for x
   x = 2,404,856,428.40/53,680.78
6. Step 6: Final answer
   x = 44,799.21