Finding the Fourth Proportional to 140,526.50, 210,792.49 and 51,734.30

Step by Step Solution

1. Step 1: Write the proportion equation
   140,526.50 : 210,792.49 = 51,734.30 : x
2. Step 2: Convert to fraction form
   140,526.50/210,792.49 = 51,734.30/x
3. Step 3: Cross multiply
   140,526.50x = 210,792.49 × 51,734.30
4. Step 4: Simplify right side
   140,526.50x = 10,905,200,732.11
5. Step 5: Solve for x
   x = 10,905,200,732.11/140,526.50
6. Step 6: Final answer
   x = 77,602.45