Finding the Fourth Proportional to 127,156.66, 175,421.37 and 76,826.50

Step by Step Solution

1. Step 1: Write the proportion equation
   127,156.66 : 175,421.37 = 76,826.50 : x
2. Step 2: Convert to fraction form
   127,156.66/175,421.37 = 76,826.50/x
3. Step 3: Cross multiply
   127,156.66x = 175,421.37 × 76,826.50
4. Step 4: Simplify right side
   127,156.66x = 13,477,009,882.31
5. Step 5: Solve for x
   x = 13,477,009,882.31/127,156.66
6. Step 6: Final answer
   x = 105,987.45