Finding the Fourth Proportional to 186,009.82, 278,947.83 and 64,397.33

Step by Step Solution

1. Step 1: Write the proportion equation
   186,009.82 : 278,947.83 = 64,397.33 : x
2. Step 2: Convert to fraction form
   186,009.82/278,947.83 = 64,397.33/x
3. Step 3: Cross multiply
   186,009.82x = 278,947.83 × 64,397.33
4. Step 4: Simplify right side
   186,009.82x = 17,963,495,139.31
5. Step 5: Solve for x
   x = 17,963,495,139.31/186,009.82
6. Step 6: Final answer
   x = 96,572.83