Finding the Fourth Proportional to 298,838.61, 448,323.50 and 88,492.89

Step by Step Solution

1. Step 1: Write the proportion equation
   298,838.61 : 448,323.50 = 88,492.89 : x
2. Step 2: Convert to fraction form
   298,838.61/448,323.50 = 88,492.89/x
3. Step 3: Cross multiply
   298,838.61x = 448,323.50 × 88,492.89
4. Step 4: Simplify right side
   298,838.61x = 39,673,441,727.45
5. Step 5: Solve for x
   x = 39,673,441,727.45/298,838.61
6. Step 6: Final answer
   x = 132,758.75