Finding the Fourth Proportional to 79,265.50, 109,386.40 and 45,731.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,265.50 : 109,386.40 = 45,731.50 : x
2. Step 2: Convert to fraction form
   79,265.50/109,386.40 = 45,731.50/x
3. Step 3: Cross multiply
   79,265.50x = 109,386.40 × 45,731.50
4. Step 4: Simplify right side
   79,265.50x = 5,002,404,151.60
5. Step 5: Solve for x
   x = 5,002,404,151.60/79,265.50
6. Step 6: Final answer
   x = 63,109.48