Finding the Fourth Proportional to 56,630.17, 78,150.72 and 31,137.67

Step by Step Solution

1. Step 1: Write the proportion equation
   56,630.17 : 78,150.72 = 31,137.67 : x
2. Step 2: Convert to fraction form
   56,630.17/78,150.72 = 31,137.67/x
3. Step 3: Cross multiply
   56,630.17x = 78,150.72 × 31,137.67
4. Step 4: Simplify right side
   56,630.17x = 2,433,431,329.62
5. Step 5: Solve for x
   x = 2,433,431,329.62/56,630.17
6. Step 6: Final answer
   x = 42,970.58