Finding the Fourth Proportional to 89,742.21, 134,644.64 and 59,875.89

Step by Step Solution

1. Step 1: Write the proportion equation
   89,742.21 : 134,644.64 = 59,875.89 : x
2. Step 2: Convert to fraction form
   89,742.21/134,644.64 = 59,875.89/x
3. Step 3: Cross multiply
   89,742.21x = 134,644.64 × 59,875.89
4. Step 4: Simplify right side
   89,742.21x = 8,061,967,354.35
5. Step 5: Solve for x
   x = 8,061,967,354.35/89,742.21
6. Step 6: Final answer
   x = 89,834.73