Finding the Fourth Proportional to 56,031.39, 77,321.34 and 30,537.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,031.39 : 77,321.34 = 30,537.25 : x
2. Step 2: Convert to fraction form
   56,031.39/77,321.34 = 30,537.25/x
3. Step 3: Cross multiply
   56,031.39x = 77,321.34 × 30,537.25
4. Step 4: Simplify right side
   56,031.39x = 2,361,180,896.61
5. Step 5: Solve for x
   x = 2,361,180,896.61/56,031.39
6. Step 6: Final answer
   x = 42,140.32