Finding the Fourth Proportional to 101,751.67, 140,417.31 and 56,436.59

Step by Step Solution

1. Step 1: Write the proportion equation
   101,751.67 : 140,417.31 = 56,436.59 : x
2. Step 2: Convert to fraction form
   101,751.67/140,417.31 = 56,436.59/x
3. Step 3: Cross multiply
   101,751.67x = 140,417.31 × 56,436.59
4. Step 4: Simplify right side
   101,751.67x = 7,924,674,153.37
5. Step 5: Solve for x
   x = 7,924,674,153.37/101,751.67
6. Step 6: Final answer
   x = 77,882.50