Finding the Fourth Proportional to 101,854.56, 140,567.76 and 56,536.80

Step by Step Solution

1. Step 1: Write the proportion equation
   101,854.56 : 140,567.76 = 56,536.80 : x
2. Step 2: Convert to fraction form
   101,854.56/140,567.76 = 56,536.80/x
3. Step 3: Cross multiply
   101,854.56x = 140,567.76 × 56,536.80
4. Step 4: Simplify right side
   101,854.56x = 7,947,251,333.57
5. Step 5: Solve for x
   x = 7,947,251,333.57/101,854.56
6. Step 6: Final answer
   x = 78,025.48