Finding the Fourth Proportional to 56,030.64, 77,320.31 and 30,536.49

Step by Step Solution

1. Step 1: Write the proportion equation
   56,030.64 : 77,320.31 = 30,536.49 : x
2. Step 2: Convert to fraction form
   56,030.64/77,320.31 = 30,536.49/x
3. Step 3: Cross multiply
   56,030.64x = 77,320.31 × 30,536.49
4. Step 4: Simplify right side
   56,030.64x = 2,361,091,010.38
5. Step 5: Solve for x
   x = 2,361,091,010.38/56,030.64
6. Step 6: Final answer
   x = 42,139.29