Finding the Fourth Proportional to 194,971.50, 269,061.03 and 105,547.50

Step by Step Solution

1. Step 1: Write the proportion equation
   194,971.50 : 269,061.03 = 105,547.50 : x
2. Step 2: Convert to fraction form
   194,971.50/269,061.03 = 105,547.50/x
3. Step 3: Cross multiply
   194,971.50x = 269,061.03 × 105,547.50
4. Step 4: Simplify right side
   194,971.50x = 28,398,719,063.93
5. Step 5: Solve for x
   x = 28,398,719,063.93/194,971.50
6. Step 6: Final answer
   x = 145,655.74