Finding the Fourth Proportional to 106,511.86, 147,607.73 and 105,008.50

Step by Step Solution

1. Step 1: Write the proportion equation
   106,511.86 : 147,607.73 = 105,008.50 : x
2. Step 2: Convert to fraction form
   106,511.86/147,607.73 = 105,008.50/x
3. Step 3: Cross multiply
   106,511.86x = 147,607.73 × 105,008.50
4. Step 4: Simplify right side
   106,511.86x = 15,500,066,315.71
5. Step 5: Solve for x
   x = 15,500,066,315.71/106,511.86
6. Step 6: Final answer
   x = 145,524.32