Finding the Fourth Proportional to 83,705.59, 115,462.56 and 49,690.99

Step by Step Solution

1. Step 1: Write the proportion equation
   83,705.59 : 115,462.56 = 49,690.99 : x
2. Step 2: Convert to fraction form
   83,705.59/115,462.56 = 49,690.99/x
3. Step 3: Cross multiply
   83,705.59x = 115,462.56 × 49,690.99
4. Step 4: Simplify right side
   83,705.59x = 5,737,448,914.33
5. Step 5: Solve for x
   x = 5,737,448,914.33/83,705.59
6. Step 6: Final answer
   x = 68,543.20