Finding the Fourth Proportional to 237,443.51, 327,672.57 and 128,549.00

Step by Step Solution

1. Step 1: Write the proportion equation
   237,443.51 : 327,672.57 = 128,549.00 : x
2. Step 2: Convert to fraction form
   237,443.51/327,672.57 = 128,549.00/x
3. Step 3: Cross multiply
   237,443.51x = 327,672.57 × 128,549.00
4. Step 4: Simplify right side
   237,443.51x = 42,121,980,259.45
5. Step 5: Solve for x
   x = 42,121,980,259.45/237,443.51
6. Step 6: Final answer
   x = 177,397.90