Finding the Fourth Proportional to 380,240.06, 570,433.88 and 113,978.27

Step by Step Solution

1. Step 1: Write the proportion equation
   380,240.06 : 570,433.88 = 113,978.27 : x
2. Step 2: Convert to fraction form
   380,240.06/570,433.88 = 113,978.27/x
3. Step 3: Cross multiply
   380,240.06x = 570,433.88 × 113,978.27
4. Step 4: Simplify right side
   380,240.06x = 65,017,068,502.82
5. Step 5: Solve for x
   x = 65,017,068,502.82/380,240.06
6. Step 6: Final answer
   x = 170,989.53