Finding the Fourth Proportional to 126,931.54, 175,184.82 and 81,011

Step by Step Solution

1. Step 1: Write the proportion equation
   126,931.54 : 175,184.82 = 81,011 : x
2. Step 2: Convert to fraction form
   126,931.54/175,184.82 = 81,011/x
3. Step 3: Cross multiply
   126,931.54x = 175,184.82 × 81,011
4. Step 4: Simplify right side
   126,931.54x = 14,191,897,453.02
5. Step 5: Solve for x
   x = 14,191,897,453.02/126,931.54
6. Step 6: Final answer
   x = 111,807.49