Finding the Fourth Proportional to 238,443.28, 357,575.64 and 69,928.72

Step by Step Solution

1. Step 1: Write the proportion equation
   238,443.28 : 357,575.64 = 69,928.72 : x
2. Step 2: Convert to fraction form
   238,443.28/357,575.64 = 69,928.72/x
3. Step 3: Cross multiply
   238,443.28x = 357,575.64 × 69,928.72
4. Step 4: Simplify right side
   238,443.28x = 25,004,806,808.38
5. Step 5: Solve for x
   x = 25,004,806,808.38/238,443.28
6. Step 6: Final answer
   x = 104,866.90