Finding the Fourth Proportional to 60,502.71, 90,686.79 and 45,663.51

Step by Step Solution

1. Step 1: Write the proportion equation
   60,502.71 : 90,686.79 = 45,663.51 : x
2. Step 2: Convert to fraction form
   60,502.71/90,686.79 = 45,663.51/x
3. Step 3: Cross multiply
   60,502.71x = 90,686.79 × 45,663.51
4. Step 4: Simplify right side
   60,502.71x = 4,141,077,142.03
5. Step 5: Solve for x
   x = 4,141,077,142.03/60,502.71
6. Step 6: Final answer
   x = 68,444.49