Finding the Fourth Proportional to 56,120.58, 77,459.09 and 38,222.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,120.58 : 77,459.09 = 38,222.72 : x
2. Step 2: Convert to fraction form
   56,120.58/77,459.09 = 38,222.72/x
3. Step 3: Cross multiply
   56,120.58x = 77,459.09 × 38,222.72
4. Step 4: Simplify right side
   56,120.58x = 2,960,696,820.59
5. Step 5: Solve for x
   x = 2,960,696,820.59/56,120.58
6. Step 6: Final answer
   x = 52,755.99