Finding the Fourth Proportional to 93,237.88, 139,684.20 and 72,103

Step by Step Solution

1. Step 1: Write the proportion equation
   93,237.88 : 139,684.20 = 72,103 : x
2. Step 2: Convert to fraction form
   93,237.88/139,684.20 = 72,103/x
3. Step 3: Cross multiply
   93,237.88x = 139,684.20 × 72,103
4. Step 4: Simplify right side
   93,237.88x = 10,071,649,872.60
5. Step 5: Solve for x
   x = 10,071,649,872.60/93,237.88
6. Step 6: Final answer
   x = 108,021.01