Finding the Fourth Proportional to 112,372.93, 155,079.35 and 64,626.31

Step by Step Solution

1. Step 1: Write the proportion equation
   112,372.93 : 155,079.35 = 64,626.31 : x
2. Step 2: Convert to fraction form
   112,372.93/155,079.35 = 64,626.31/x
3. Step 3: Cross multiply
   112,372.93x = 155,079.35 × 64,626.31
4. Step 4: Simplify right side
   112,372.93x = 10,022,206,442.53
5. Step 5: Solve for x
   x = 10,022,206,442.53/112,372.93
6. Step 6: Final answer
   x = 89,187.02