Finding the Fourth Proportional to 98,826.72, 136,380.71 and 53,504.69

Step by Step Solution

1. Step 1: Write the proportion equation
   98,826.72 : 136,380.71 = 53,504.69 : x
2. Step 2: Convert to fraction form
   98,826.72/136,380.71 = 53,504.69/x
3. Step 3: Cross multiply
   98,826.72x = 136,380.71 × 53,504.69
4. Step 4: Simplify right side
   98,826.72x = 7,297,006,661.10
5. Step 5: Solve for x
   x = 7,297,006,661.10/98,826.72
6. Step 6: Final answer
   x = 73,836.37