Finding the Fourth Proportional to 56,300.34, 77,690.97 and 31,149.84

Step by Step Solution

1. Step 1: Write the proportion equation
   56,300.34 : 77,690.97 = 31,149.84 : x
2. Step 2: Convert to fraction form
   56,300.34/77,690.97 = 31,149.84/x
3. Step 3: Cross multiply
   56,300.34x = 77,690.97 × 31,149.84
4. Step 4: Simplify right side
   56,300.34x = 2,420,061,284.94
5. Step 5: Solve for x
   x = 2,420,061,284.94/56,300.34
6. Step 6: Final answer
   x = 42,984.84