Finding the Fourth Proportional to 162,105.71, 223,702.16 and 90,492.39

Step by Step Solution

1. Step 1: Write the proportion equation
   162,105.71 : 223,702.16 = 90,492.39 : x
2. Step 2: Convert to fraction form
   162,105.71/223,702.16 = 90,492.39/x
3. Step 3: Cross multiply
   162,105.71x = 223,702.16 × 90,492.39
4. Step 4: Simplify right side
   162,105.71x = 20,243,342,654.10
5. Step 5: Solve for x
   x = 20,243,342,654.10/162,105.71
6. Step 6: Final answer
   x = 124,877.42