Finding the Fourth Proportional to 139,323.04, 208,985.50 and 34,142.02

Step by Step Solution

1. Step 1: Write the proportion equation
   139,323.04 : 208,985.50 = 34,142.02 : x
2. Step 2: Convert to fraction form
   139,323.04/208,985.50 = 34,142.02/x
3. Step 3: Cross multiply
   139,323.04x = 208,985.50 × 34,142.02
4. Step 4: Simplify right side
   139,323.04x = 7,135,187,120.71
5. Step 5: Solve for x
   x = 7,135,187,120.71/139,323.04
6. Step 6: Final answer
   x = 51,213.26