Finding the Fourth Proportional to 140,883.06, 194,417.52 and 77,220.72

Step by Step Solution

1. Step 1: Write the proportion equation
   140,883.06 : 194,417.52 = 77,220.72 : x
2. Step 2: Convert to fraction form
   140,883.06/194,417.52 = 77,220.72/x
3. Step 3: Cross multiply
   140,883.06x = 194,417.52 × 77,220.72
4. Step 4: Simplify right side
   140,883.06x = 15,013,060,875.01
5. Step 5: Solve for x
   x = 15,013,060,875.01/140,883.06
6. Step 6: Final answer
   x = 106,563.99