Finding the Fourth Proportional to 72,837.79, 109,270.46 and 28,461.74

Step by Step Solution

1. Step 1: Write the proportion equation
   72,837.79 : 109,270.46 = 28,461.74 : x
2. Step 2: Convert to fraction form
   72,837.79/109,270.46 = 28,461.74/x
3. Step 3: Cross multiply
   72,837.79x = 109,270.46 × 28,461.74
4. Step 4: Simplify right side
   72,837.79x = 3,110,026,947.00
5. Step 5: Solve for x
   x = 3,110,026,947.00/72,837.79
6. Step 6: Final answer
   x = 42,697.99