Finding the Fourth Proportional to 56,480.34, 77,937.72 and 30,985.62

Step by Step Solution

1. Step 1: Write the proportion equation
   56,480.34 : 77,937.72 = 30,985.62 : x
2. Step 2: Convert to fraction form
   56,480.34/77,937.72 = 30,985.62/x
3. Step 3: Cross multiply
   56,480.34x = 77,937.72 × 30,985.62
4. Step 4: Simplify right side
   56,480.34x = 2,414,948,575.59
5. Step 5: Solve for x
   x = 2,414,948,575.59/56,480.34
6. Step 6: Final answer
   x = 42,757.33