Finding the Fourth Proportional to 78,587.31, 108,375.05 and 52,804.10

Step by Step Solution

1. Step 1: Write the proportion equation
   78,587.31 : 108,375.05 = 52,804.10 : x
2. Step 2: Convert to fraction form
   78,587.31/108,375.05 = 52,804.10/x
3. Step 3: Cross multiply
   78,587.31x = 108,375.05 × 52,804.10
4. Step 4: Simplify right side
   78,587.31x = 5,722,646,171.81
5. Step 5: Solve for x
   x = 5,722,646,171.81/78,587.31
6. Step 6: Final answer
   x = 72,818.96