Finding the Fourth Proportional to 101,192.40, 139,644.89 and 55,869.99

Step by Step Solution

1. Step 1: Write the proportion equation
   101,192.40 : 139,644.89 = 55,869.99 : x
2. Step 2: Convert to fraction form
   101,192.40/139,644.89 = 55,869.99/x
3. Step 3: Cross multiply
   101,192.40x = 139,644.89 × 55,869.99
4. Step 4: Simplify right side
   101,192.40x = 7,801,958,328.50
5. Step 5: Solve for x
   x = 7,801,958,328.50/101,192.40
6. Step 6: Final answer
   x = 77,100.24