Finding the Fourth Proportional to 78,696.63, 108,566.64 and 53,193.69

Step by Step Solution

1. Step 1: Write the proportion equation
   78,696.63 : 108,566.64 = 53,193.69 : x
2. Step 2: Convert to fraction form
   78,696.63/108,566.64 = 53,193.69/x
3. Step 3: Cross multiply
   78,696.63x = 108,566.64 × 53,193.69
4. Step 4: Simplify right side
   78,696.63x = 5,775,060,192.50
5. Step 5: Solve for x
   x = 5,775,060,192.50/78,696.63
6. Step 6: Final answer
   x = 73,383.83