Finding the Fourth Proportional to 89,027.31, 133,448.69 and 55,670.81

Step by Step Solution

1. Step 1: Write the proportion equation
   89,027.31 : 133,448.69 = 55,670.81 : x
2. Step 2: Convert to fraction form
   89,027.31/133,448.69 = 55,670.81/x
3. Step 3: Cross multiply
   89,027.31x = 133,448.69 × 55,670.81
4. Step 4: Simplify right side
   89,027.31x = 7,429,196,137.67
5. Step 5: Solve for x
   x = 7,429,196,137.67/89,027.31
6. Step 6: Final answer
   x = 83,448.50