Finding the Fourth Proportional to 185,480.21, 278,240.72 and 59,091.05

Step by Step Solution

1. Step 1: Write the proportion equation
   185,480.21 : 278,240.72 = 59,091.05 : x
2. Step 2: Convert to fraction form
   185,480.21/278,240.72 = 59,091.05/x
3. Step 3: Cross multiply
   185,480.21x = 278,240.72 × 59,091.05
4. Step 4: Simplify right side
   185,480.21x = 16,441,536,002.10
5. Step 5: Solve for x
   x = 16,441,536,002.10/185,480.21
6. Step 6: Final answer
   x = 88,643.07