Finding the Fourth Proportional to 79,088.69, 109,145.13 and 45,102.31

Step by Step Solution

1. Step 1: Write the proportion equation
   79,088.69 : 109,145.13 = 45,102.31 : x
2. Step 2: Convert to fraction form
   79,088.69/109,145.13 = 45,102.31/x
3. Step 3: Cross multiply
   79,088.69x = 109,145.13 × 45,102.31
4. Step 4: Simplify right side
   79,088.69x = 4,922,697,488.25
5. Step 5: Solve for x
   x = 4,922,697,488.25/79,088.69
6. Step 6: Final answer
   x = 62,242.75