Finding the Fourth Proportional to 250,091.78, 375,196.17 and 72,602.18

Step by Step Solution

1. Step 1: Write the proportion equation
   250,091.78 : 375,196.17 = 72,602.18 : x
2. Step 2: Convert to fraction form
   250,091.78/375,196.17 = 72,602.18/x
3. Step 3: Cross multiply
   250,091.78x = 375,196.17 × 72,602.18
4. Step 4: Simplify right side
   250,091.78x = 27,240,059,869.65
5. Step 5: Solve for x
   x = 27,240,059,869.65/250,091.78
6. Step 6: Final answer
   x = 108,920.25