Finding the Fourth Proportional to 101,488.96, 140,052.76 and 56,164.30

Step by Step Solution

1. Step 1: Write the proportion equation
   101,488.96 : 140,052.76 = 56,164.30 : x
2. Step 2: Convert to fraction form
   101,488.96/140,052.76 = 56,164.30/x
3. Step 3: Cross multiply
   101,488.96x = 140,052.76 × 56,164.30
4. Step 4: Simplify right side
   101,488.96x = 7,865,965,228.47
5. Step 5: Solve for x
   x = 7,865,965,228.47/101,488.96
6. Step 6: Final answer
   x = 77,505.62