Finding the Fourth Proportional to 112,765.56, 155,612.40 and 64,369.98

Step by Step Solution

1. Step 1: Write the proportion equation
   112,765.56 : 155,612.40 = 64,369.98 : x
2. Step 2: Convert to fraction form
   112,765.56/155,612.40 = 64,369.98/x
3. Step 3: Cross multiply
   112,765.56x = 155,612.40 × 64,369.98
4. Step 4: Simplify right side
   112,765.56x = 10,016,767,075.75
5. Step 5: Solve for x
   x = 10,016,767,075.75/112,765.56
6. Step 6: Final answer
   x = 88,828.25