Finding the Fourth Proportional to 366,938.99, 550,383.72 and 100,677.20

Step by Step Solution

1. Step 1: Write the proportion equation
   366,938.99 : 550,383.72 = 100,677.20 : x
2. Step 2: Convert to fraction form
   366,938.99/550,383.72 = 100,677.20/x
3. Step 3: Cross multiply
   366,938.99x = 550,383.72 × 100,677.20
4. Step 4: Simplify right side
   366,938.99x = 55,411,089,103.27
5. Step 5: Solve for x
   x = 55,411,089,103.27/366,938.99
6. Step 6: Final answer
   x = 151,009.00