Finding the Fourth Proportional to 152,055.13, 209,830.78 and 83,146.20

Step by Step Solution

1. Step 1: Write the proportion equation
   152,055.13 : 209,830.78 = 83,146.20 : x
2. Step 2: Convert to fraction form
   152,055.13/209,830.78 = 83,146.20/x
3. Step 3: Cross multiply
   152,055.13x = 209,830.78 × 83,146.20
4. Step 4: Simplify right side
   152,055.13x = 17,446,632,000.04
5. Step 5: Solve for x
   x = 17,446,632,000.04/152,055.13
6. Step 6: Final answer
   x = 114,738.86