Finding the Fourth Proportional to 76,761.52, 114,994.56 and 47,092.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,761.52 : 114,994.56 = 47,092.72 : x
2. Step 2: Convert to fraction form
   76,761.52/114,994.56 = 47,092.72/x
3. Step 3: Cross multiply
   76,761.52x = 114,994.56 × 47,092.72
4. Step 4: Simplify right side
   76,761.52x = 5,415,406,615.60
5. Step 5: Solve for x
   x = 5,415,406,615.60/76,761.52
6. Step 6: Final answer
   x = 70,548.45