Finding the Fourth Proportional to 111,372, 153,693.39 and 61,072.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111,372 : 153,693.39 = 61,072.08 : x
2. Step 2: Convert to fraction form
   111,372/153,693.39 = 61,072.08/x
3. Step 3: Cross multiply
   111,372x = 153,693.39 × 61,072.08
4. Step 4: Simplify right side
   111,372x = 9,386,375,009.55
5. Step 5: Solve for x
   x = 9,386,375,009.55/111,372
6. Step 6: Final answer
   x = 84,279.49