Finding the Fourth Proportional to 69,775.50, 105,128.54 and 63,119.74

Step by Step Solution

1. Step 1: Write the proportion equation
   69,775.50 : 105,128.54 = 63,119.74 : x
2. Step 2: Convert to fraction form
   69,775.50/105,128.54 = 63,119.74/x
3. Step 3: Cross multiply
   69,775.50x = 105,128.54 × 63,119.74
4. Step 4: Simplify right side
   69,775.50x = 6,635,686,111.38
5. Step 5: Solve for x
   x = 6,635,686,111.38/69,775.50
6. Step 6: Final answer
   x = 95,100.52