Finding the Fourth Proportional to 68,688.10, 103,061.78 and 37,091.87

Step by Step Solution

1. Step 1: Write the proportion equation
   68,688.10 : 103,061.78 = 37,091.87 : x
2. Step 2: Convert to fraction form
   68,688.10/103,061.78 = 37,091.87/x
3. Step 3: Cross multiply
   68,688.10x = 103,061.78 × 37,091.87
4. Step 4: Simplify right side
   68,688.10x = 3,822,754,145.73
5. Step 5: Solve for x
   x = 3,822,754,145.73/68,688.10
6. Step 6: Final answer
   x = 55,653.81