Finding the Fourth Proportional to 123,802.03, 170,951.52 and 78,560.29

Step by Step Solution

1. Step 1: Write the proportion equation
   123,802.03 : 170,951.52 = 78,560.29 : x
2. Step 2: Convert to fraction form
   123,802.03/170,951.52 = 78,560.29/x
3. Step 3: Cross multiply
   123,802.03x = 170,951.52 × 78,560.29
4. Step 4: Simplify right side
   123,802.03x = 13,430,000,987.14
5. Step 5: Solve for x
   x = 13,430,000,987.14/123,802.03
6. Step 6: Final answer
   x = 108,479.65