Finding the Fourth Proportional to 72,926.10, 109,345.39 and 28,499.93

Step by Step Solution

1. Step 1: Write the proportion equation
   72,926.10 : 109,345.39 = 28,499.93 : x
2. Step 2: Convert to fraction form
   72,926.10/109,345.39 = 28,499.93/x
3. Step 3: Cross multiply
   72,926.10x = 109,345.39 × 28,499.93
4. Step 4: Simplify right side
   72,926.10x = 3,116,335,960.82
5. Step 5: Solve for x
   x = 3,116,335,960.82/72,926.10
6. Step 6: Final answer
   x = 42,732.79