Finding the Fourth Proportional to 155,333.16, 214,431.96 and 117,108.18

Step by Step Solution

1. Step 1: Write the proportion equation
   155,333.16 : 214,431.96 = 117,108.18 : x
2. Step 2: Convert to fraction form
   155,333.16/214,431.96 = 117,108.18/x
3. Step 3: Cross multiply
   155,333.16x = 214,431.96 × 117,108.18
4. Step 4: Simplify right side
   155,333.16x = 25,111,736,569.43
5. Step 5: Solve for x
   x = 25,111,736,569.43/155,333.16
6. Step 6: Final answer
   x = 161,663.72