Finding the Fourth Proportional to 112,662.38, 155,472.80 and 61,674.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,662.38 : 155,472.80 = 61,674.50 : x
2. Step 2: Convert to fraction form
   112,662.38/155,472.80 = 61,674.50/x
3. Step 3: Cross multiply
   112,662.38x = 155,472.80 × 61,674.50
4. Step 4: Simplify right side
   112,662.38x = 9,588,706,117.86
5. Step 5: Solve for x
   x = 9,588,706,117.86/112,662.38
6. Step 6: Final answer
   x = 85,110.10