Finding the Fourth Proportional to 55,538.84, 76,641.72 and 30,387.80

Step by Step Solution

1. Step 1: Write the proportion equation
   55,538.84 : 76,641.72 = 30,387.80 : x
2. Step 2: Convert to fraction form
   55,538.84/76,641.72 = 30,387.80/x
3. Step 3: Cross multiply
   55,538.84x = 76,641.72 × 30,387.80
4. Step 4: Simplify right side
   55,538.84x = 2,328,973,259.02
5. Step 5: Solve for x
   x = 2,328,973,259.02/55,538.84
6. Step 6: Final answer
   x = 41,934.14