Finding the Fourth Proportional to 72,880.10, 109,378.46 and 37,829.78

Step by Step Solution

1. Step 1: Write the proportion equation
   72,880.10 : 109,378.46 = 37,829.78 : x
2. Step 2: Convert to fraction form
   72,880.10/109,378.46 = 37,829.78/x
3. Step 3: Cross multiply
   72,880.10x = 109,378.46 × 37,829.78
4. Step 4: Simplify right side
   72,880.10x = 4,137,762,342.50
5. Step 5: Solve for x
   x = 4,137,762,342.50/72,880.10
6. Step 6: Final answer
   x = 56,774.93