Finding the Fourth Proportional to 93,072.72, 139,689.69 and 48,730.50

Step by Step Solution

1. Step 1: Write the proportion equation
   93,072.72 : 139,689.69 = 48,730.50 : x
2. Step 2: Convert to fraction form
   93,072.72/139,689.69 = 48,730.50/x
3. Step 3: Cross multiply
   93,072.72x = 139,689.69 × 48,730.50
4. Step 4: Simplify right side
   93,072.72x = 6,807,148,438.55
5. Step 5: Solve for x
   x = 6,807,148,438.55/93,072.72
6. Step 6: Final answer
   x = 73,137.96