Finding the Fourth Proportional to 104,253.89, 143,870.88 and 56,506.82

Step by Step Solution

1. Step 1: Write the proportion equation
   104,253.89 : 143,870.88 = 56,506.82 : x
2. Step 2: Convert to fraction form
   104,253.89/143,870.88 = 56,506.82/x
3. Step 3: Cross multiply
   104,253.89x = 143,870.88 × 56,506.82
4. Step 4: Simplify right side
   104,253.89x = 8,129,685,411.95
5. Step 5: Solve for x
   x = 8,129,685,411.95/104,253.89
6. Step 6: Final answer
   x = 77,979.69