Finding the Fourth Proportional to 140,061.99, 210,105.81 and 55,801.74

Step by Step Solution

1. Step 1: Write the proportion equation
   140,061.99 : 210,105.81 = 55,801.74 : x
2. Step 2: Convert to fraction form
   140,061.99/210,105.81 = 55,801.74/x
3. Step 3: Cross multiply
   140,061.99x = 210,105.81 × 55,801.74
4. Step 4: Simplify right side
   140,061.99x = 11,724,269,782.11
5. Step 5: Solve for x
   x = 11,724,269,782.11/140,061.99
6. Step 6: Final answer
   x = 83,707.72