Finding the Fourth Proportional to 111,748.47, 154,212.89 and 61,447.47

Step by Step Solution

1. Step 1: Write the proportion equation
   111,748.47 : 154,212.89 = 61,447.47 : x
2. Step 2: Convert to fraction form
   111,748.47/154,212.89 = 61,447.47/x
3. Step 3: Cross multiply
   111,748.47x = 154,212.89 × 61,447.47
4. Step 4: Simplify right side
   111,748.47x = 9,475,991,931.89
5. Step 5: Solve for x
   x = 9,475,991,931.89/111,748.47
6. Step 6: Final answer
   x = 84,797.51