Finding the Fourth Proportional to 87,809.33, 121,164.60 and 49,047.59

Step by Step Solution

1. Step 1: Write the proportion equation
   87,809.33 : 121,164.60 = 49,047.59 : x
2. Step 2: Convert to fraction form
   87,809.33/121,164.60 = 49,047.59/x
3. Step 3: Cross multiply
   87,809.33x = 121,164.60 × 49,047.59
4. Step 4: Simplify right side
   87,809.33x = 5,942,831,623.31
5. Step 5: Solve for x
   x = 5,942,831,623.31/87,809.33
6. Step 6: Final answer
   x = 67,678.82