Finding the Fourth Proportional to 299,443.61, 448,791.62 and 149,726.72

Step by Step Solution

1. Step 1: Write the proportion equation
   299,443.61 : 448,791.62 = 149,726.72 : x
2. Step 2: Convert to fraction form
   299,443.61/448,791.62 = 149,726.72/x
3. Step 3: Cross multiply
   299,443.61x = 448,791.62 × 149,726.72
4. Step 4: Simplify right side
   299,443.61x = 67,196,096,864.00
5. Step 5: Solve for x
   x = 67,196,096,864.00/299,443.61
6. Step 6: Final answer
   x = 224,403.17