Finding the Fourth Proportional to 139,354.94, 209,018.18 and 38,162.00

Step by Step Solution

1. Step 1: Write the proportion equation
   139,354.94 : 209,018.18 = 38,162.00 : x
2. Step 2: Convert to fraction form
   139,354.94/209,018.18 = 38,162.00/x
3. Step 3: Cross multiply
   139,354.94x = 209,018.18 × 38,162.00
4. Step 4: Simplify right side
   139,354.94x = 7,976,550,549.26
5. Step 5: Solve for x
   x = 7,976,550,549.26/139,354.94
6. Step 6: Final answer
   x = 57,239.10