Finding the Fourth Proportional to 78,870.81, 108,801.21 and 52,003.52

Step by Step Solution

1. Step 1: Write the proportion equation
   78,870.81 : 108,801.21 = 52,003.52 : x
2. Step 2: Convert to fraction form
   78,870.81/108,801.21 = 52,003.52/x
3. Step 3: Cross multiply
   78,870.81x = 108,801.21 × 52,003.52
4. Step 4: Simplify right side
   78,870.81x = 5,658,045,096.24
5. Step 5: Solve for x
   x = 5,658,045,096.24/78,870.81
6. Step 6: Final answer
   x = 71,738.14