Finding the Fourth Proportional to 101,601.35, 140,203.69 and 56,276.69

Step by Step Solution

1. Step 1: Write the proportion equation
   101,601.35 : 140,203.69 = 56,276.69 : x
2. Step 2: Convert to fraction form
   101,601.35/140,203.69 = 56,276.69/x
3. Step 3: Cross multiply
   101,601.35x = 140,203.69 × 56,276.69
4. Step 4: Simplify right side
   101,601.35x = 7,890,199,862.48
5. Step 5: Solve for x
   x = 7,890,199,862.48/101,601.35
6. Step 6: Final answer
   x = 77,658.41