Finding the Fourth Proportional to 284,117.52, 392,091.59 and 155,063.06

Step by Step Solution

1. Step 1: Write the proportion equation
   284,117.52 : 392,091.59 = 155,063.06 : x
2. Step 2: Convert to fraction form
   284,117.52/392,091.59 = 155,063.06/x
3. Step 3: Cross multiply
   284,117.52x = 392,091.59 × 155,063.06
4. Step 4: Simplify right side
   284,117.52x = 60,798,920,172.87
5. Step 5: Solve for x
   x = 60,798,920,172.87/284,117.52
6. Step 6: Final answer
   x = 213,992.15