Finding the Fourth Proportional to 100,875.54, 139,201.83 and 60,591

Step by Step Solution

1. Step 1: Write the proportion equation
   100,875.54 : 139,201.83 = 60,591 : x
2. Step 2: Convert to fraction form
   100,875.54/139,201.83 = 60,591/x
3. Step 3: Cross multiply
   100,875.54x = 139,201.83 × 60,591
4. Step 4: Simplify right side
   100,875.54x = 8,434,378,081.53
5. Step 5: Solve for x
   x = 8,434,378,081.53/100,875.54
6. Step 6: Final answer
   x = 83,611.73