Finding the Fourth Proportional to 99,105.69, 136,766.85 and 53,784.06

Step by Step Solution

1. Step 1: Write the proportion equation
   99,105.69 : 136,766.85 = 53,784.06 : x
2. Step 2: Convert to fraction form
   99,105.69/136,766.85 = 53,784.06/x
3. Step 3: Cross multiply
   99,105.69x = 136,766.85 × 53,784.06
4. Step 4: Simplify right side
   99,105.69x = 7,355,877,167.29
5. Step 5: Solve for x
   x = 7,355,877,167.29/99,105.69
6. Step 6: Final answer
   x = 74,222.55