Finding the Fourth Proportional to 72,072.16, 108,108.23 and 52,475.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,072.16 : 108,108.23 = 52,475.42 : x
2. Step 2: Convert to fraction form
   72,072.16/108,108.23 = 52,475.42/x
3. Step 3: Cross multiply
   72,072.16x = 108,108.23 × 52,475.42
4. Step 4: Simplify right side
   72,072.16x = 5,673,024,774.71
5. Step 5: Solve for x
   x = 5,673,024,774.71/72,072.16
6. Step 6: Final answer
   x = 78,713.12