Finding the Fourth Proportional to 56,007.34, 77,289.89 and 30,513.63

Step by Step Solution

1. Step 1: Write the proportion equation
   56,007.34 : 77,289.89 = 30,513.63 : x
2. Step 2: Convert to fraction form
   56,007.34/77,289.89 = 30,513.63/x
3. Step 3: Cross multiply
   56,007.34x = 77,289.89 × 30,513.63
4. Step 4: Simplify right side
   56,007.34x = 2,358,395,106.20
5. Step 5: Solve for x
   x = 2,358,395,106.20/56,007.34
6. Step 6: Final answer
   x = 42,108.68