Finding the Fourth Proportional to 100,793.69, 139,095.30 and 55,471.65

Step by Step Solution

1. Step 1: Write the proportion equation
   100,793.69 : 139,095.30 = 55,471.65 : x
2. Step 2: Convert to fraction form
   100,793.69/139,095.30 = 55,471.65/x
3. Step 3: Cross multiply
   100,793.69x = 139,095.30 × 55,471.65
4. Step 4: Simplify right side
   100,793.69x = 7,715,845,798.25
5. Step 5: Solve for x
   x = 7,715,845,798.25/100,793.69
6. Step 6: Final answer
   x = 76,550.89