Finding the Fourth Proportional to 139.29, 209.00 and 62.25

Step by Step Solution

1. Step 1: Write the proportion equation
   139.29 : 209.00 = 62.25 : x
2. Step 2: Convert to fraction form
   139.29/209.00 = 62.25/x
3. Step 3: Cross multiply
   139.29x = 209.00 × 62.25
4. Step 4: Simplify right side
   139.29x = 13,009.94
5. Step 5: Solve for x
   x = 13,009.94/139.29
6. Step 6: Final answer
   x = 93.40