Finding the Fourth Proportional to 132,903.83, 183,411.71 and 72,477.78

Step by Step Solution

1. Step 1: Write the proportion equation
   132,903.83 : 183,411.71 = 72,477.78 : x
2. Step 2: Convert to fraction form
   132,903.83/183,411.71 = 72,477.78/x
3. Step 3: Cross multiply
   132,903.83x = 183,411.71 × 72,477.78
4. Step 4: Simplify right side
   132,903.83x = 13,293,273,566.80
5. Step 5: Solve for x
   x = 13,293,273,566.80/132,903.83
6. Step 6: Final answer
   x = 100,021.75