Finding the Fourth Proportional to 62,780.52, 86,641.20 and 43,923.72

Step by Step Solution

1. Step 1: Write the proportion equation
   62,780.52 : 86,641.20 = 43,923.72 : x
2. Step 2: Convert to fraction form
   62,780.52/86,641.20 = 43,923.72/x
3. Step 3: Cross multiply
   62,780.52x = 86,641.20 × 43,923.72
4. Step 4: Simplify right side
   62,780.52x = 3,805,603,809.26
5. Step 5: Solve for x
   x = 3,805,603,809.26/62,780.52
6. Step 6: Final answer
   x = 60,617.59