Finding the Fourth Proportional to 89,877.48, 134,531.88 and 56,481.98

Step by Step Solution

1. Step 1: Write the proportion equation
   89,877.48 : 134,531.88 = 56,481.98 : x
2. Step 2: Convert to fraction form
   89,877.48/134,531.88 = 56,481.98/x
3. Step 3: Cross multiply
   89,877.48x = 134,531.88 × 56,481.98
4. Step 4: Simplify right side
   89,877.48x = 7,598,626,955.52
5. Step 5: Solve for x
   x = 7,598,626,955.52/89,877.48
6. Step 6: Final answer
   x = 84,544.28