Finding the Fourth Proportional to 105,075.71, 157,482.21 and 67,535.87

Step by Step Solution

1. Step 1: Write the proportion equation
   105,075.71 : 157,482.21 = 67,535.87 : x
2. Step 2: Convert to fraction form
   105,075.71/157,482.21 = 67,535.87/x
3. Step 3: Cross multiply
   105,075.71x = 157,482.21 × 67,535.87
4. Step 4: Simplify right side
   105,075.71x = 10,635,698,061.87
5. Step 5: Solve for x
   x = 10,635,698,061.87/105,075.71
6. Step 6: Final answer
   x = 101,219.38