Finding the Fourth Proportional to 89,991, 134,913.60 and 37,439.82

Step by Step Solution

1. Step 1: Write the proportion equation
   89,991 : 134,913.60 = 37,439.82 : x
2. Step 2: Convert to fraction form
   89,991/134,913.60 = 37,439.82/x
3. Step 3: Cross multiply
   89,991x = 134,913.60 × 37,439.82
4. Step 4: Simplify right side
   89,991x = 5,051,140,899.55
5. Step 5: Solve for x
   x = 5,051,140,899.55/89,991
6. Step 6: Final answer
   x = 56,129.40