Finding the Fourth Proportional to 56,161.72, 77,506.34 and 30,670.46

Step by Step Solution

1. Step 1: Write the proportion equation
   56,161.72 : 77,506.34 = 30,670.46 : x
2. Step 2: Convert to fraction form
   56,161.72/77,506.34 = 30,670.46/x
3. Step 3: Cross multiply
   56,161.72x = 77,506.34 × 30,670.46
4. Step 4: Simplify right side
   56,161.72x = 2,377,155,100.72
5. Step 5: Solve for x
   x = 2,377,155,100.72/56,161.72
6. Step 6: Final answer
   x = 42,326.96