Finding the Fourth Proportional to 48,588.89, 72,889.18 and 45,931.69

Step by Step Solution

1. Step 1: Write the proportion equation
   48,588.89 : 72,889.18 = 45,931.69 : x
2. Step 2: Convert to fraction form
   48,588.89/72,889.18 = 45,931.69/x
3. Step 3: Cross multiply
   48,588.89x = 72,889.18 × 45,931.69
4. Step 4: Simplify right side
   48,588.89x = 3,347,922,980.48
5. Step 5: Solve for x
   x = 3,347,922,980.48/48,588.89
6. Step 6: Final answer
   x = 68,903.05