Finding the Fourth Proportional to 53,680.83, 74,081.89 and 29,809.72

Step by Step Solution

1. Step 1: Write the proportion equation
   53,680.83 : 74,081.89 = 29,809.72 : x
2. Step 2: Convert to fraction form
   53,680.83/74,081.89 = 29,809.72/x
3. Step 3: Cross multiply
   53,680.83x = 74,081.89 × 29,809.72
4. Step 4: Simplify right side
   53,680.83x = 2,208,360,527.84
5. Step 5: Solve for x
   x = 2,208,360,527.84/53,680.83
6. Step 6: Final answer
   x = 41,138.72