Finding the Fourth Proportional to 101,817.36, 140,508.72 and 56,495.52

Step by Step Solution

1. Step 1: Write the proportion equation
   101,817.36 : 140,508.72 = 56,495.52 : x
2. Step 2: Convert to fraction form
   101,817.36/140,508.72 = 56,495.52/x
3. Step 3: Cross multiply
   101,817.36x = 140,508.72 × 56,495.52
4. Step 4: Simplify right side
   101,817.36x = 7,938,113,200.93
5. Step 5: Solve for x
   x = 7,938,113,200.93/101,817.36
6. Step 6: Final answer
   x = 77,964.24