Finding the Fourth Proportional to 88,858.72, 133,222.24 and 53,790.08

Step by Step Solution

1. Step 1: Write the proportion equation
   88,858.72 : 133,222.24 = 53,790.08 : x
2. Step 2: Convert to fraction form
   88,858.72/133,222.24 = 53,790.08/x
3. Step 3: Cross multiply
   88,858.72x = 133,222.24 × 53,790.08
4. Step 4: Simplify right side
   88,858.72x = 7,166,034,947.38
5. Step 5: Solve for x
   x = 7,166,034,947.38/88,858.72
6. Step 6: Final answer
   x = 80,645.26