Finding the Fourth Proportional to 100,900.69, 139,242.95 and 58,483.82

Step by Step Solution

1. Step 1: Write the proportion equation
   100,900.69 : 139,242.95 = 58,483.82 : x
2. Step 2: Convert to fraction form
   100,900.69/139,242.95 = 58,483.82/x
3. Step 3: Cross multiply
   100,900.69x = 139,242.95 × 58,483.82
4. Step 4: Simplify right side
   100,900.69x = 8,143,459,899.07
5. Step 5: Solve for x
   x = 8,143,459,899.07/100,900.69
6. Step 6: Final answer
   x = 80,707.68