Finding the Fourth Proportional to 308,300.00, 425,335.88 and 187,397.18

Step by Step Solution

1. Step 1: Write the proportion equation
   308,300.00 : 425,335.88 = 187,397.18 : x
2. Step 2: Convert to fraction form
   308,300.00/425,335.88 = 187,397.18/x
3. Step 3: Cross multiply
   308,300.00x = 425,335.88 × 187,397.18
4. Step 4: Simplify right side
   308,300.00x = 79,706,741,401.15
5. Step 5: Solve for x
   x = 79,706,741,401.15/308,300.00
6. Step 6: Final answer
   x = 258,536.30