Finding the Fourth Proportional to 140,104.13, 210,081.93 and 61,126.09

Step by Step Solution

1. Step 1: Write the proportion equation
   140,104.13 : 210,081.93 = 61,126.09 : x
2. Step 2: Convert to fraction form
   140,104.13/210,081.93 = 61,126.09/x
3. Step 3: Cross multiply
   140,104.13x = 210,081.93 × 61,126.09
4. Step 4: Simplify right side
   140,104.13x = 12,841,486,960.55
5. Step 5: Solve for x
   x = 12,841,486,960.55/140,104.13
6. Step 6: Final answer
   x = 91,656.73