Finding the Fourth Proportional to 111,561.42, 153,953.01 and 61,260.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111,561.42 : 153,953.01 = 61,260.42 : x
2. Step 2: Convert to fraction form
   111,561.42/153,953.01 = 61,260.42/x
3. Step 3: Cross multiply
   111,561.42x = 153,953.01 × 61,260.42
4. Step 4: Simplify right side
   111,561.42x = 9,431,226,052.86
5. Step 5: Solve for x
   x = 9,431,226,052.86/111,561.42
6. Step 6: Final answer
   x = 84,538.42