Finding the Fourth Proportional to 112,410.34, 155,132.16 and 64,670.86

Step by Step Solution

1. Step 1: Write the proportion equation
   112,410.34 : 155,132.16 = 64,670.86 : x
2. Step 2: Convert to fraction form
   112,410.34/155,132.16 = 64,670.86/x
3. Step 3: Cross multiply
   112,410.34x = 155,132.16 × 64,670.86
4. Step 4: Simplify right side
   112,410.34x = 10,032,530,200.86
5. Step 5: Solve for x
   x = 10,032,530,200.86/112,410.34
6. Step 6: Final answer
   x = 89,249.18