Finding the Fourth Proportional to 101,836.56, 140,517.42 and 56,507.34

Step by Step Solution

1. Step 1: Write the proportion equation
   101,836.56 : 140,517.42 = 56,507.34 : x
2. Step 2: Convert to fraction form
   101,836.56/140,517.42 = 56,507.34/x
3. Step 3: Cross multiply
   101,836.56x = 140,517.42 × 56,507.34
4. Step 4: Simplify right side
   101,836.56x = 7,940,265,627.86
5. Step 5: Solve for x
   x = 7,940,265,627.86/101,836.56
6. Step 6: Final answer
   x = 77,970.68