Finding the Fourth Proportional to 80,061.30, 110,455.35 and 61,669.98

Step by Step Solution

1. Step 1: Write the proportion equation
   80,061.30 : 110,455.35 = 61,669.98 : x
2. Step 2: Convert to fraction form
   80,061.30/110,455.35 = 61,669.98/x
3. Step 3: Cross multiply
   80,061.30x = 110,455.35 × 61,669.98
4. Step 4: Simplify right side
   80,061.30x = 6,811,779,225.39
5. Step 5: Solve for x
   x = 6,811,779,225.39/80,061.30
6. Step 6: Final answer
   x = 85,082.05