Finding the Fourth Proportional to 101,641.89, 140,279.00 and 61,378.41

Step by Step Solution

1. Step 1: Write the proportion equation
   101,641.89 : 140,279.00 = 61,378.41 : x
2. Step 2: Convert to fraction form
   101,641.89/140,279.00 = 61,378.41/x
3. Step 3: Cross multiply
   101,641.89x = 140,279.00 × 61,378.41
4. Step 4: Simplify right side
   101,641.89x = 8,610,101,669.50
5. Step 5: Solve for x
   x = 8,610,101,669.50/101,641.89
6. Step 6: Final answer
   x = 84,710.17