Finding the Fourth Proportional to 536,499.48, 804,873.78 and 157,404.90

Step by Step Solution

1. Step 1: Write the proportion equation
   536,499.48 : 804,873.78 = 157,404.90 : x
2. Step 2: Convert to fraction form
   536,499.48/804,873.78 = 157,404.90/x
3. Step 3: Cross multiply
   536,499.48x = 804,873.78 × 157,404.90
4. Step 4: Simplify right side
   536,499.48x = 126,691,076,853.52
5. Step 5: Solve for x
   x = 126,691,076,853.52/536,499.48
6. Step 6: Final answer
   x = 236,143.89