Finding the Fourth Proportional to 72,461.02, 108,857.16 and 51,452.86

Step by Step Solution

1. Step 1: Write the proportion equation
   72,461.02 : 108,857.16 = 51,452.86 : x
2. Step 2: Convert to fraction form
   72,461.02/108,857.16 = 51,452.86/x
3. Step 3: Cross multiply
   72,461.02x = 108,857.16 × 51,452.86
4. Step 4: Simplify right side
   72,461.02x = 5,601,012,213.48
5. Step 5: Solve for x
   x = 5,601,012,213.48/72,461.02
6. Step 6: Final answer
   x = 77,296.90