Finding the Fourth Proportional to 68,061.76, 102,097.50 and 18,141.60

Step by Step Solution

1. Step 1: Write the proportion equation
   68,061.76 : 102,097.50 = 18,141.60 : x
2. Step 2: Convert to fraction form
   68,061.76/102,097.50 = 18,141.60/x
3. Step 3: Cross multiply
   68,061.76x = 102,097.50 × 18,141.60
4. Step 4: Simplify right side
   68,061.76x = 1,852,211,495.51
5. Step 5: Solve for x
   x = 1,852,211,495.51/68,061.76
6. Step 6: Final answer
   x = 27,213.69