Finding the Fourth Proportional to 73,075.57, 100,861.14 and 42,870.60

Step by Step Solution

1. Step 1: Write the proportion equation
   73,075.57 : 100,861.14 = 42,870.60 : x
2. Step 2: Convert to fraction form
   73,075.57/100,861.14 = 42,870.60/x
3. Step 3: Cross multiply
   73,075.57x = 100,861.14 × 42,870.60
4. Step 4: Simplify right side
   73,075.57x = 4,323,977,588.48
5. Step 5: Solve for x
   x = 4,323,977,588.48/73,075.57
6. Step 6: Final answer
   x = 59,171.32