Finding the Fourth Proportional to 77,155.72, 115,742.82 and 27,225.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,155.72 : 115,742.82 = 27,225.50 : x
2. Step 2: Convert to fraction form
   77,155.72/115,742.82 = 27,225.50/x
3. Step 3: Cross multiply
   77,155.72x = 115,742.82 × 27,225.50
4. Step 4: Simplify right side
   77,155.72x = 3,151,156,145.91
5. Step 5: Solve for x
   x = 3,151,156,145.91/77,155.72
6. Step 6: Final answer
   x = 40,841.51