Finding the Fourth Proportional to 56,429.82, 77,872.57 and 30,937.59

Step by Step Solution

1. Step 1: Write the proportion equation
   56,429.82 : 77,872.57 = 30,937.59 : x
2. Step 2: Convert to fraction form
   56,429.82/77,872.57 = 30,937.59/x
3. Step 3: Cross multiply
   56,429.82x = 77,872.57 × 30,937.59
4. Step 4: Simplify right side
   56,429.82x = 2,409,189,642.91
5. Step 5: Solve for x
   x = 2,409,189,642.91/56,429.82
6. Step 6: Final answer
   x = 42,693.56