Finding the Fourth Proportional to 86,641.72, 119,573.61 and 52,642.37

Step by Step Solution

1. Step 1: Write the proportion equation
   86,641.72 : 119,573.61 = 52,642.37 : x
2. Step 2: Convert to fraction form
   86,641.72/119,573.61 = 52,642.37/x
3. Step 3: Cross multiply
   86,641.72x = 119,573.61 × 52,642.37
4. Step 4: Simplify right side
   86,641.72x = 6,294,638,219.86
5. Step 5: Solve for x
   x = 6,294,638,219.86/86,641.72
6. Step 6: Final answer
   x = 72,651.35