Finding the Fourth Proportional to 112,151.72, 154,769.52 and 61,164.56

Step by Step Solution

1. Step 1: Write the proportion equation
   112,151.72 : 154,769.52 = 61,164.56 : x
2. Step 2: Convert to fraction form
   112,151.72/154,769.52 = 61,164.56/x
3. Step 3: Cross multiply
   112,151.72x = 154,769.52 × 61,164.56
4. Step 4: Simplify right side
   112,151.72x = 9,466,409,592.21
5. Step 5: Solve for x
   x = 9,466,409,592.21/112,151.72
6. Step 6: Final answer
   x = 84,407.17