Finding the Fourth Proportional to 101,821.86, 140,514.94 and 56,500.02

Step by Step Solution

1. Step 1: Write the proportion equation
   101,821.86 : 140,514.94 = 56,500.02 : x
2. Step 2: Convert to fraction form
   101,821.86/140,514.94 = 56,500.02/x
3. Step 3: Cross multiply
   101,821.86x = 140,514.94 × 56,500.02
4. Step 4: Simplify right side
   101,821.86x = 7,939,096,920.30
5. Step 5: Solve for x
   x = 7,939,096,920.30/101,821.86
6. Step 6: Final answer
   x = 77,970.46