Finding the Fourth Proportional to 112,275.60, 154,938.06 and 64,527.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,275.60 : 154,938.06 = 64,527.72 : x
2. Step 2: Convert to fraction form
   112,275.60/154,938.06 = 64,527.72/x
3. Step 3: Cross multiply
   112,275.60x = 154,938.06 × 64,527.72
4. Step 4: Simplify right side
   112,275.60x = 9,997,799,753.02
5. Step 5: Solve for x
   x = 9,997,799,753.02/112,275.60
6. Step 6: Final answer
   x = 89,046.95