Finding the Fourth Proportional to 79,288.61, 109,417.50 and 43,478.51

Step by Step Solution

1. Step 1: Write the proportion equation
   79,288.61 : 109,417.50 = 43,478.51 : x
2. Step 2: Convert to fraction form
   79,288.61/109,417.50 = 43,478.51/x
3. Step 3: Cross multiply
   79,288.61x = 109,417.50 × 43,478.51
4. Step 4: Simplify right side
   79,288.61x = 4,757,309,320.84
5. Step 5: Solve for x
   x = 4,757,309,320.84/79,288.61
6. Step 6: Final answer
   x = 59,999.91