Finding the Fourth Proportional to 72,528.88, 108,705.84 and 37,449.40

Step by Step Solution

1. Step 1: Write the proportion equation
   72,528.88 : 108,705.84 = 37,449.40 : x
2. Step 2: Convert to fraction form
   72,528.88/108,705.84 = 37,449.40/x
3. Step 3: Cross multiply
   72,528.88x = 108,705.84 × 37,449.40
4. Step 4: Simplify right side
   72,528.88x = 4,070,968,484.50
5. Step 5: Solve for x
   x = 4,070,968,484.50/72,528.88
6. Step 6: Final answer
   x = 56,128.93