Finding the Fourth Proportional to 73,026.72, 100,776.78 and 39,492.72

Step by Step Solution

1. Step 1: Write the proportion equation
   73,026.72 : 100,776.78 = 39,492.72 : x
2. Step 2: Convert to fraction form
   73,026.72/100,776.78 = 39,492.72/x
3. Step 3: Cross multiply
   73,026.72x = 100,776.78 × 39,492.72
4. Step 4: Simplify right side
   73,026.72x = 3,979,949,155.04
5. Step 5: Solve for x
   x = 3,979,949,155.04/73,026.72
6. Step 6: Final answer
   x = 54,499.90