Finding the Fourth Proportional to 83,407.85, 115,098.27 and 49,419.47

Step by Step Solution

1. Step 1: Write the proportion equation
   83,407.85 : 115,098.27 = 49,419.47 : x
2. Step 2: Convert to fraction form
   83,407.85/115,098.27 = 49,419.47/x
3. Step 3: Cross multiply
   83,407.85x = 115,098.27 × 49,419.47
4. Step 4: Simplify right side
   83,407.85x = 5,688,095,501.32
5. Step 5: Solve for x
   x = 5,688,095,501.32/83,407.85
6. Step 6: Final answer
   x = 68,196.17