Finding the Fourth Proportional to 56,373.12, 77,796.06 and 30,880.56

Step by Step Solution

1. Step 1: Write the proportion equation
   56,373.12 : 77,796.06 = 30,880.56 : x
2. Step 2: Convert to fraction form
   56,373.12/77,796.06 = 30,880.56/x
3. Step 3: Cross multiply
   56,373.12x = 77,796.06 × 30,880.56
4. Step 4: Simplify right side
   56,373.12x = 2,402,385,898.59
5. Step 5: Solve for x
   x = 2,402,385,898.59/56,373.12
6. Step 6: Final answer
   x = 42,615.81