Finding the Fourth Proportional to 53,088.89, 79,550.71 and 19,800.05

Step by Step Solution

1. Step 1: Write the proportion equation
   53,088.89 : 79,550.71 = 19,800.05 : x
2. Step 2: Convert to fraction form
   53,088.89/79,550.71 = 19,800.05/x
3. Step 3: Cross multiply
   53,088.89x = 79,550.71 × 19,800.05
4. Step 4: Simplify right side
   53,088.89x = 1,575,107,588.28
5. Step 5: Solve for x
   x = 1,575,107,588.28/53,088.89
6. Step 6: Final answer
   x = 29,669.25