Finding the Fourth Proportional to 91,819.77, 137,600.31 and 73,016.37

Step by Step Solution

1. Step 1: Write the proportion equation
   91,819.77 : 137,600.31 = 73,016.37 : x
2. Step 2: Convert to fraction form
   91,819.77/137,600.31 = 73,016.37/x
3. Step 3: Cross multiply
   91,819.77x = 137,600.31 × 73,016.37
4. Step 4: Simplify right side
   91,819.77x = 10,047,075,147.07
5. Step 5: Solve for x
   x = 10,047,075,147.07/91,819.77
6. Step 6: Final answer
   x = 109,421.70