Finding the Fourth Proportional to 111,375, 153,697.50 and 61,074

Step by Step Solution

1. Step 1: Write the proportion equation
   111,375 : 153,697.50 = 61,074 : x
2. Step 2: Convert to fraction form
   111,375/153,697.50 = 61,074/x
3. Step 3: Cross multiply
   111,375x = 153,697.50 × 61,074
4. Step 4: Simplify right side
   111,375x = 9,386,921,115
5. Step 5: Solve for x
   x = 9,386,921,115/111,375
6. Step 6: Final answer
   x = 84,282.12