Finding the Fourth Proportional to 85,429.24, 117,891.72 and 47,191.30

Step by Step Solution

1. Step 1: Write the proportion equation
   85,429.24 : 117,891.72 = 47,191.30 : x
2. Step 2: Convert to fraction form
   85,429.24/117,891.72 = 47,191.30/x
3. Step 3: Cross multiply
   85,429.24x = 117,891.72 × 47,191.30
4. Step 4: Simplify right side
   85,429.24x = 5,563,463,526.04
5. Step 5: Solve for x
   x = 5,563,463,526.04/85,429.24
6. Step 6: Final answer
   x = 65,123.65