Finding the Fourth Proportional to 132,978.56, 183,492.22 and 76,389.92

Step by Step Solution

1. Step 1: Write the proportion equation
   132,978.56 : 183,492.22 = 76,389.92 : x
2. Step 2: Convert to fraction form
   132,978.56/183,492.22 = 76,389.92/x
3. Step 3: Cross multiply
   132,978.56x = 183,492.22 × 76,389.92
4. Step 4: Simplify right side
   132,978.56x = 14,016,956,006.42
5. Step 5: Solve for x
   x = 14,016,956,006.42/132,978.56
6. Step 6: Final answer
   x = 105,407.64