Finding the Fourth Proportional to 72,945.77, 109,467.86 and 28,566.98

Step by Step Solution

1. Step 1: Write the proportion equation
   72,945.77 : 109,467.86 = 28,566.98 : x
2. Step 2: Convert to fraction form
   72,945.77/109,467.86 = 28,566.98/x
3. Step 3: Cross multiply
   72,945.77x = 109,467.86 × 28,566.98
4. Step 4: Simplify right side
   72,945.77x = 3,127,165,887.59
5. Step 5: Solve for x
   x = 3,127,165,887.59/72,945.77
6. Step 6: Final answer
   x = 42,869.74