Finding the Fourth Proportional to 56,061.09, 77,360.63 and 30,910.77

Step by Step Solution

1. Step 1: Write the proportion equation
   56,061.09 : 77,360.63 = 30,910.77 : x
2. Step 2: Convert to fraction form
   56,061.09/77,360.63 = 30,910.77/x
3. Step 3: Cross multiply
   56,061.09x = 77,360.63 × 30,910.77
4. Step 4: Simplify right side
   56,061.09x = 2,391,276,486.43
5. Step 5: Solve for x
   x = 2,391,276,486.43/56,061.09
6. Step 6: Final answer
   x = 42,654.83