Finding the Fourth Proportional to 209,422.72, 314,082.18 and 59,664.31

Step by Step Solution

1. Step 1: Write the proportion equation
   209,422.72 : 314,082.18 = 59,664.31 : x
2. Step 2: Convert to fraction form
   209,422.72/314,082.18 = 59,664.31/x
3. Step 3: Cross multiply
   209,422.72x = 314,082.18 × 59,664.31
4. Step 4: Simplify right side
   209,422.72x = 18,739,494,982.58
5. Step 5: Solve for x
   x = 18,739,494,982.58/209,422.72
6. Step 6: Final answer
   x = 89,481.67