Finding the Fourth Proportional to 83,820.42, 115,666.38 and 49,827.15

Step by Step Solution

1. Step 1: Write the proportion equation
   83,820.42 : 115,666.38 = 49,827.15 : x
2. Step 2: Convert to fraction form
   83,820.42/115,666.38 = 49,827.15/x
3. Step 3: Cross multiply
   83,820.42x = 115,666.38 × 49,827.15
4. Step 4: Simplify right side
   83,820.42x = 5,763,326,066.22
5. Step 5: Solve for x
   x = 5,763,326,066.22/83,820.42
6. Step 6: Final answer
   x = 68,758.02