Finding the Fourth Proportional to 162,071.73, 242,981.72 and 105,025.13

Step by Step Solution

1. Step 1: Write the proportion equation
   162,071.73 : 242,981.72 = 105,025.13 : x
2. Step 2: Convert to fraction form
   162,071.73/242,981.72 = 105,025.13/x
3. Step 3: Cross multiply
   162,071.73x = 242,981.72 × 105,025.13
4. Step 4: Simplify right side
   162,071.73x = 25,519,184,990.59
5. Step 5: Solve for x
   x = 25,519,184,990.59/162,071.73
6. Step 6: Final answer
   x = 157,456.12