Finding the Fourth Proportional to 265,914.89, 398,811.50 and 76,373.75

Step by Step Solution

1. Step 1: Write the proportion equation
   265,914.89 : 398,811.50 = 76,373.75 : x
2. Step 2: Convert to fraction form
   265,914.89/398,811.50 = 76,373.75/x
3. Step 3: Cross multiply
   265,914.89x = 398,811.50 × 76,373.75
4. Step 4: Simplify right side
   265,914.89x = 30,458,727,422.20
5. Step 5: Solve for x
   x = 30,458,727,422.20/265,914.89
6. Step 6: Final answer
   x = 114,543.15