Finding the Fourth Proportional to 277,931.02, 414,862.56 and 238,739.98

Step by Step Solution

1. Step 1: Write the proportion equation
   277,931.02 : 414,862.56 = 238,739.98 : x
2. Step 2: Convert to fraction form
   277,931.02/414,862.56 = 238,739.98/x
3. Step 3: Cross multiply
   277,931.02x = 414,862.56 × 238,739.98
4. Step 4: Simplify right side
   277,931.02x = 99,044,279,277.15
5. Step 5: Solve for x
   x = 99,044,279,277.15/277,931.02
6. Step 6: Final answer
   x = 356,362.81