Finding the Fourth Proportional to 209,779.83, 314,678.39 and 109,884.15

Step by Step Solution

1. Step 1: Write the proportion equation
   209,779.83 : 314,678.39 = 109,884.15 : x
2. Step 2: Convert to fraction form
   209,779.83/314,678.39 = 109,884.15/x
3. Step 3: Cross multiply
   209,779.83x = 314,678.39 × 109,884.15
4. Step 4: Simplify right side
   209,779.83x = 34,578,166,859.10
5. Step 5: Solve for x
   x = 34,578,166,859.10/209,779.83
6. Step 6: Final answer
   x = 164,830.75