Finding the Fourth Proportional to 72,748.44, 109,124.86 and 28,373.40

Step by Step Solution

1. Step 1: Write the proportion equation
   72,748.44 : 109,124.86 = 28,373.40 : x
2. Step 2: Convert to fraction form
   72,748.44/109,124.86 = 28,373.40/x
3. Step 3: Cross multiply
   72,748.44x = 109,124.86 × 28,373.40
4. Step 4: Simplify right side
   72,748.44x = 3,096,243,302.72
5. Step 5: Solve for x
   x = 3,096,243,302.72/72,748.44
6. Step 6: Final answer
   x = 42,560.96