Finding the Fourth Proportional to 101,513.74, 140,085.38 and 56,191.82

Step by Step Solution

1. Step 1: Write the proportion equation
   101,513.74 : 140,085.38 = 56,191.82 : x
2. Step 2: Convert to fraction form
   101,513.74/140,085.38 = 56,191.82/x
3. Step 3: Cross multiply
   101,513.74x = 140,085.38 × 56,191.82
4. Step 4: Simplify right side
   101,513.74x = 7,871,652,457.59
5. Step 5: Solve for x
   x = 7,871,652,457.59/101,513.74
6. Step 6: Final answer
   x = 77,542.73