Finding the Fourth Proportional to 72,705.60, 109,112.40 and 37,627.20

Step by Step Solution

1. Step 1: Write the proportion equation
   72,705.60 : 109,112.40 = 37,627.20 : x
2. Step 2: Convert to fraction form
   72,705.60/109,112.40 = 37,627.20/x
3. Step 3: Cross multiply
   72,705.60x = 109,112.40 × 37,627.20
4. Step 4: Simplify right side
   72,705.60x = 4,105,594,097.28
5. Step 5: Solve for x
   x = 4,105,594,097.28/72,705.60
6. Step 6: Final answer
   x = 56,468.75