Finding the Fourth Proportional to 99,105.87, 136,767.10 and 53,784.24

Step by Step Solution

1. Step 1: Write the proportion equation
   99,105.87 : 136,767.10 = 53,784.24 : x
2. Step 2: Convert to fraction form
   99,105.87/136,767.10 = 53,784.24/x
3. Step 3: Cross multiply
   99,105.87x = 136,767.10 × 53,784.24
4. Step 4: Simplify right side
   99,105.87x = 7,355,914,753.33
5. Step 5: Solve for x
   x = 7,355,914,753.33/99,105.87
6. Step 6: Final answer
   x = 74,222.80