Finding the Fourth Proportional to 56,061.18, 77,364.48 and 30,910.68

Step by Step Solution

1. Step 1: Write the proportion equation
   56,061.18 : 77,364.48 = 30,910.68 : x
2. Step 2: Convert to fraction form
   56,061.18/77,364.48 = 30,910.68/x
3. Step 3: Cross multiply
   56,061.18x = 77,364.48 × 30,910.68
4. Step 4: Simplify right side
   56,061.18x = 2,391,388,684.65
5. Step 5: Solve for x
   x = 2,391,388,684.65/56,061.18
6. Step 6: Final answer
   x = 42,656.77