Finding the Fourth Proportional to 270,499.64, 373,300.50 and 149,638.84

Step by Step Solution

1. Step 1: Write the proportion equation
   270,499.64 : 373,300.50 = 149,638.84 : x
2. Step 2: Convert to fraction form
   270,499.64/373,300.50 = 149,638.84/x
3. Step 3: Cross multiply
   270,499.64x = 373,300.50 × 149,638.84
4. Step 4: Simplify right side
   270,499.64x = 55,860,254,256.55
5. Step 5: Solve for x
   x = 55,860,254,256.55/270,499.64
6. Step 6: Final answer
   x = 206,507.68