Finding the Fourth Proportional to 107,075.61, 147,709.06 and 72,608.69

Step by Step Solution

1. Step 1: Write the proportion equation
   107,075.61 : 147,709.06 = 72,608.69 : x
2. Step 2: Convert to fraction form
   107,075.61/147,709.06 = 72,608.69/x
3. Step 3: Cross multiply
   107,075.61x = 147,709.06 × 72,608.69
4. Step 4: Simplify right side
   107,075.61x = 10,724,960,699.95
5. Step 5: Solve for x
   x = 10,724,960,699.95/107,075.61
6. Step 6: Final answer
   x = 100,162.50