Finding the Fourth Proportional to 131,389.56, 197,085.42 and 56,504.52

Step by Step Solution

1. Step 1: Write the proportion equation
   131,389.56 : 197,085.42 = 56,504.52 : x
2. Step 2: Convert to fraction form
   131,389.56/197,085.42 = 56,504.52/x
3. Step 3: Cross multiply
   131,389.56x = 197,085.42 × 56,504.52
4. Step 4: Simplify right side
   131,389.56x = 11,136,217,056.10
5. Step 5: Solve for x
   x = 11,136,217,056.10/131,389.56
6. Step 6: Final answer
   x = 84,757.24