Finding the Fourth Proportional to 243,820.42, 365,755.23 and 91,979.39

Step by Step Solution

1. Step 1: Write the proportion equation
   243,820.42 : 365,755.23 = 91,979.39 : x
2. Step 2: Convert to fraction form
   243,820.42/365,755.23 = 91,979.39/x
3. Step 3: Cross multiply
   243,820.42x = 365,755.23 × 91,979.39
4. Step 4: Simplify right side
   243,820.42x = 33,641,943,859.10
5. Step 5: Solve for x
   x = 33,641,943,859.10/243,820.42
6. Step 6: Final answer
   x = 137,978.37