Finding the Fourth Proportional to 243,321.48, 364,992.27 and 83,507.25

Step by Step Solution

1. Step 1: Write the proportion equation
   243,321.48 : 364,992.27 = 83,507.25 : x
2. Step 2: Convert to fraction form
   243,321.48/364,992.27 = 83,507.25/x
3. Step 3: Cross multiply
   243,321.48x = 364,992.27 × 83,507.25
4. Step 4: Simplify right side
   243,321.48x = 30,479,500,738.96
5. Step 5: Solve for x
   x = 30,479,500,738.96/243,321.48
6. Step 6: Final answer
   x = 125,264.32