Finding the Fourth Proportional to 284,116.02, 392,089.52 and 155,061.56

Step by Step Solution

1. Step 1: Write the proportion equation
   284,116.02 : 392,089.52 = 155,061.56 : x
2. Step 2: Convert to fraction form
   284,116.02/392,089.52 = 155,061.56/x
3. Step 3: Cross multiply
   284,116.02x = 392,089.52 × 155,061.56
4. Step 4: Simplify right side
   284,116.02x = 60,798,011,058.06
5. Step 5: Solve for x
   x = 60,798,011,058.06/284,116.02
6. Step 6: Final answer
   x = 213,990.08