Finding the Fourth Proportional to 238,978.48, 358,519.74 and 72,762.16

Step by Step Solution

1. Step 1: Write the proportion equation
   238,978.48 : 358,519.74 = 72,762.16 : x
2. Step 2: Convert to fraction form
   238,978.48/358,519.74 = 72,762.16/x
3. Step 3: Cross multiply
   238,978.48x = 358,519.74 × 72,762.16
4. Step 4: Simplify right side
   238,978.48x = 26,086,670,685.04
5. Step 5: Solve for x
   x = 26,086,670,685.04/238,978.48
6. Step 6: Final answer
   x = 109,159.08