Finding the Fourth Proportional to 101,911.89, 140,633.71 and 56,592.76

Step by Step Solution

1. Step 1: Write the proportion equation
   101,911.89 : 140,633.71 = 56,592.76 : x
2. Step 2: Convert to fraction form
   101,911.89/140,633.71 = 56,592.76/x
3. Step 3: Cross multiply
   101,911.89x = 140,633.71 × 56,592.76
4. Step 4: Simplify right side
   101,911.89x = 7,958,849,797.94
5. Step 5: Solve for x
   x = 7,958,849,797.94/101,911.89
6. Step 6: Final answer
   x = 78,095.40