Finding the Fourth Proportional to 72,905.70, 109,258.56 and 37,292.43

Step by Step Solution

1. Step 1: Write the proportion equation
   72,905.70 : 109,258.56 = 37,292.43 : x
2. Step 2: Convert to fraction form
   72,905.70/109,258.56 = 37,292.43/x
3. Step 3: Cross multiply
   72,905.70x = 109,258.56 × 37,292.43
4. Step 4: Simplify right side
   72,905.70x = 4,074,517,200.70
5. Step 5: Solve for x
   x = 4,074,517,200.70/72,905.70
6. Step 6: Final answer
   x = 55,887.50