Finding the Fourth Proportional to 56,031.57, 77,322.56 and 30,538.17

Step by Step Solution

1. Step 1: Write the proportion equation
   56,031.57 : 77,322.56 = 30,538.17 : x
2. Step 2: Convert to fraction form
   56,031.57/77,322.56 = 30,538.17/x
3. Step 3: Cross multiply
   56,031.57x = 77,322.56 × 30,538.17
4. Step 4: Simplify right side
   56,031.57x = 2,361,289,329.42
5. Step 5: Solve for x
   x = 2,361,289,329.42/56,031.57
6. Step 6: Final answer
   x = 42,142.12