Finding the Fourth Proportional to 101,853, 140,561.46 and 57,141

Step by Step Solution

1. Step 1: Write the proportion equation
   101,853 : 140,561.46 = 57,141 : x
2. Step 2: Convert to fraction form
   101,853/140,561.46 = 57,141/x
3. Step 3: Cross multiply
   101,853x = 140,561.46 × 57,141
4. Step 4: Simplify right side
   101,853x = 8,031,822,385.86
5. Step 5: Solve for x
   x = 8,031,822,385.86/101,853
6. Step 6: Final answer
   x = 78,857.00