Finding the Fourth Proportional to 73,667.16, 110,405.96 and 64,140.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,667.16 : 110,405.96 = 64,140.50 : x
2. Step 2: Convert to fraction form
   73,667.16/110,405.96 = 64,140.50/x
3. Step 3: Cross multiply
   73,667.16x = 110,405.96 × 64,140.50
4. Step 4: Simplify right side
   73,667.16x = 7,081,493,201.37
5. Step 5: Solve for x
   x = 7,081,493,201.37/73,667.16
6. Step 6: Final answer
   x = 96,128.22