Finding the Fourth Proportional to 56,035.34, 77,328.80 and 30,541.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,035.34 : 77,328.80 = 30,541.72 : x
2. Step 2: Convert to fraction form
   56,035.34/77,328.80 = 30,541.72/x
3. Step 3: Cross multiply
   56,035.34x = 77,328.80 × 30,541.72
4. Step 4: Simplify right side
   56,035.34x = 2,361,754,557.54
5. Step 5: Solve for x
   x = 2,361,754,557.54/56,035.34
6. Step 6: Final answer
   x = 42,147.59