Finding the Fourth Proportional to 151,767.32, 209,439.69 and 83,783.05

Step by Step Solution

1. Step 1: Write the proportion equation
   151,767.32 : 209,439.69 = 83,783.05 : x
2. Step 2: Convert to fraction form
   151,767.32/209,439.69 = 83,783.05/x
3. Step 3: Cross multiply
   151,767.32x = 209,439.69 × 83,783.05
4. Step 4: Simplify right side
   151,767.32x = 17,547,495,181.47
5. Step 5: Solve for x
   x = 17,547,495,181.47/151,767.32
6. Step 6: Final answer
   x = 115,621.04