Finding the Fourth Proportional to 81,861.34, 122,787.00 and 48,146

Step by Step Solution

1. Step 1: Write the proportion equation
   81,861.34 : 122,787.00 = 48,146 : x
2. Step 2: Convert to fraction form
   81,861.34/122,787.00 = 48,146/x
3. Step 3: Cross multiply
   81,861.34x = 122,787.00 × 48,146
4. Step 4: Simplify right side
   81,861.34x = 5,911,702,661.27
5. Step 5: Solve for x
   x = 5,911,702,661.27/81,861.34
6. Step 6: Final answer
   x = 72,216.05