Finding the Fourth Proportional to 72,837.56, 109,191.18 and 28,453.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,837.56 : 109,191.18 = 28,453.88 : x
2. Step 2: Convert to fraction form
   72,837.56/109,191.18 = 28,453.88/x
3. Step 3: Cross multiply
   72,837.56x = 109,191.18 × 28,453.88
4. Step 4: Simplify right side
   72,837.56x = 3,106,912,732.78
5. Step 5: Solve for x
   x = 3,106,912,732.78/72,837.56
6. Step 6: Final answer
   x = 42,655.37