Finding the Fourth Proportional to 139,164.53, 208,758.06 and 39,325.55

Step by Step Solution

1. Step 1: Write the proportion equation
   139,164.53 : 208,758.06 = 39,325.55 : x
2. Step 2: Convert to fraction form
   139,164.53/208,758.06 = 39,325.55/x
3. Step 3: Cross multiply
   139,164.53x = 208,758.06 × 39,325.55
4. Step 4: Simplify right side
   139,164.53x = 8,209,524,482.64
5. Step 5: Solve for x
   x = 8,209,524,482.64/139,164.53
6. Step 6: Final answer
   x = 58,991.50