Finding the Fourth Proportional to 112,985.96, 155,925.52 and 67,671.32

Step by Step Solution

1. Step 1: Write the proportion equation
   112,985.96 : 155,925.52 = 67,671.32 : x
2. Step 2: Convert to fraction form
   112,985.96/155,925.52 = 67,671.32/x
3. Step 3: Cross multiply
   112,985.96x = 155,925.52 × 67,671.32
4. Step 4: Simplify right side
   112,985.96x = 10,551,685,760.09
5. Step 5: Solve for x
   x = 10,551,685,760.09/112,985.96
6. Step 6: Final answer
   x = 93,389.35