Finding the Fourth Proportional to 77,173.97, 106,506.50 and 43,185.59

Step by Step Solution

1. Step 1: Write the proportion equation
   77,173.97 : 106,506.50 = 43,185.59 : x
2. Step 2: Convert to fraction form
   77,173.97/106,506.50 = 43,185.59/x
3. Step 3: Cross multiply
   77,173.97x = 106,506.50 × 43,185.59
4. Step 4: Simplify right side
   77,173.97x = 4,599,545,692.27
5. Step 5: Solve for x
   x = 4,599,545,692.27/77,173.97
6. Step 6: Final answer
   x = 59,599.71