Finding the Fourth Proportional to 72,681.84, 108,945 and 37,586.16

Step by Step Solution

1. Step 1: Write the proportion equation
   72,681.84 : 108,945 = 37,586.16 : x
2. Step 2: Convert to fraction form
   72,681.84/108,945 = 37,586.16/x
3. Step 3: Cross multiply
   72,681.84x = 108,945 × 37,586.16
4. Step 4: Simplify right side
   72,681.84x = 4,094,824,201.20
5. Step 5: Solve for x
   x = 4,094,824,201.20/72,681.84
6. Step 6: Final answer
   x = 56,339.03