Finding the Fourth Proportional to 101,089.89, 139,496.22 and 55,769.58

Step by Step Solution

1. Step 1: Write the proportion equation
   101,089.89 : 139,496.22 = 55,769.58 : x
2. Step 2: Convert to fraction form
   101,089.89/139,496.22 = 55,769.58/x
3. Step 3: Cross multiply
   101,089.89x = 139,496.22 × 55,769.58
4. Step 4: Simplify right side
   101,089.89x = 7,779,645,600.99
5. Step 5: Solve for x
   x = 7,779,645,600.99/101,089.89
6. Step 6: Final answer
   x = 76,957.70