Finding the Fourth Proportional to 112,820.02, 155,692.05 and 65,073.55

Step by Step Solution

1. Step 1: Write the proportion equation
   112,820.02 : 155,692.05 = 65,073.55 : x
2. Step 2: Convert to fraction form
   112,820.02/155,692.05 = 65,073.55/x
3. Step 3: Cross multiply
   112,820.02x = 155,692.05 × 65,073.55
4. Step 4: Simplify right side
   112,820.02x = 10,131,434,400.28
5. Step 5: Solve for x
   x = 10,131,434,400.28/112,820.02
6. Step 6: Final answer
   x = 89,801.74