Finding the Fourth Proportional to 272,411.91, 375,931.89 and 149,918.39

Step by Step Solution

1. Step 1: Write the proportion equation
   272,411.91 : 375,931.89 = 149,918.39 : x
2. Step 2: Convert to fraction form
   272,411.91/375,931.89 = 149,918.39/x
3. Step 3: Cross multiply
   272,411.91x = 375,931.89 × 149,918.39
4. Step 4: Simplify right side
   272,411.91x = 56,359,103,698.46
5. Step 5: Solve for x
   x = 56,359,103,698.46/272,411.91
6. Step 6: Final answer
   x = 206,889.28