Finding the Fourth Proportional to 139,048.30, 208,558 and 94,356.55

Step by Step Solution

1. Step 1: Write the proportion equation
   139,048.30 : 208,558 = 94,356.55 : x
2. Step 2: Convert to fraction form
   139,048.30/208,558 = 94,356.55/x
3. Step 3: Cross multiply
   139,048.30x = 208,558 × 94,356.55
4. Step 4: Simplify right side
   139,048.30x = 19,678,813,354.90
5. Step 5: Solve for x
   x = 19,678,813,354.90/139,048.30
6. Step 6: Final answer
   x = 141,525.02