Finding the Fourth Proportional to 78,501.16, 108,276.71 and 51,635.08

Step by Step Solution

1. Step 1: Write the proportion equation
   78,501.16 : 108,276.71 = 51,635.08 : x
2. Step 2: Convert to fraction form
   78,501.16/108,276.71 = 51,635.08/x
3. Step 3: Cross multiply
   78,501.16x = 108,276.71 × 51,635.08
4. Step 4: Simplify right side
   78,501.16x = 5,590,876,582.99
5. Step 5: Solve for x
   x = 5,590,876,582.99/78,501.16
6. Step 6: Final answer
   x = 71,220.31