Finding the Fourth Proportional to 101,499.08, 140,062.59 and 56,174.31

Step by Step Solution

1. Step 1: Write the proportion equation
   101,499.08 : 140,062.59 = 56,174.31 : x
2. Step 2: Convert to fraction form
   101,499.08/140,062.59 = 56,174.31/x
3. Step 3: Cross multiply
   101,499.08x = 140,062.59 × 56,174.31
4. Step 4: Simplify right side
   101,499.08x = 7,867,919,350.06
5. Step 5: Solve for x
   x = 7,867,919,350.06/101,499.08
6. Step 6: Final answer
   x = 77,517.15