Finding the Fourth Proportional to 65,000.17, 89,666.98 and 42,377.05

Step by Step Solution

1. Step 1: Write the proportion equation
   65,000.17 : 89,666.98 = 42,377.05 : x
2. Step 2: Convert to fraction form
   65,000.17/89,666.98 = 42,377.05/x
3. Step 3: Cross multiply
   65,000.17x = 89,666.98 × 42,377.05
4. Step 4: Simplify right side
   65,000.17x = 3,799,822,094.81
5. Step 5: Solve for x
   x = 3,799,822,094.81/65,000.17
6. Step 6: Final answer
   x = 58,458.65