Finding the Fourth Proportional to 83,817.64, 115,667.72 and 45,577.21

Step by Step Solution

1. Step 1: Write the proportion equation
   83,817.64 : 115,667.72 = 45,577.21 : x
2. Step 2: Convert to fraction form
   83,817.64/115,667.72 = 45,577.21/x
3. Step 3: Cross multiply
   83,817.64x = 115,667.72 × 45,577.21
4. Step 4: Simplify right side
   83,817.64x = 5,271,811,964.66
5. Step 5: Solve for x
   x = 5,271,811,964.66/83,817.64
6. Step 6: Final answer
   x = 62,896.21