Finding the Fourth Proportional to 99,153.39, 136,716.08 and 73,959.15

Step by Step Solution

1. Step 1: Write the proportion equation
   99,153.39 : 136,716.08 = 73,959.15 : x
2. Step 2: Convert to fraction form
   99,153.39/136,716.08 = 73,959.15/x
3. Step 3: Cross multiply
   99,153.39x = 136,716.08 × 73,959.15
4. Step 4: Simplify right side
   99,153.39x = 10,111,404,698.34
5. Step 5: Solve for x
   x = 10,111,404,698.34/99,153.39
6. Step 6: Final answer
   x = 101,977.40