Finding the Fourth Proportional to 101,488.96, 140,051.88 and 56,168.82

Step by Step Solution

1. Step 1: Write the proportion equation
   101,488.96 : 140,051.88 = 56,168.82 : x
2. Step 2: Convert to fraction form
   101,488.96/140,051.88 = 56,168.82/x
3. Step 3: Cross multiply
   101,488.96x = 140,051.88 × 56,168.82
4. Step 4: Simplify right side
   101,488.96x = 7,866,548,838.38
5. Step 5: Solve for x
   x = 7,866,548,838.38/101,488.96
6. Step 6: Final answer
   x = 77,511.38