Finding the Fourth Proportional to 111,305.72, 153,602.52 and 61,004.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,305.72 : 153,602.52 = 61,004.72 : x
2. Step 2: Convert to fraction form
   111,305.72/153,602.52 = 61,004.72/x
3. Step 3: Cross multiply
   111,305.72x = 153,602.52 × 61,004.72
4. Step 4: Simplify right side
   111,305.72x = 9,370,478,723.89
5. Step 5: Solve for x
   x = 9,370,478,723.89/111,305.72
6. Step 6: Final answer
   x = 84,186.86