Finding the Fourth Proportional to 100,836.38, 139,151.75 and 55,514.00

Step by Step Solution

1. Step 1: Write the proportion equation
   100,836.38 : 139,151.75 = 55,514.00 : x
2. Step 2: Convert to fraction form
   100,836.38/139,151.75 = 55,514.00/x
3. Step 3: Cross multiply
   100,836.38x = 139,151.75 × 55,514.00
4. Step 4: Simplify right side
   100,836.38x = 7,724,869,276.17
5. Step 5: Solve for x
   x = 7,724,869,276.17/100,836.38
6. Step 6: Final answer
   x = 76,607.96