Finding the Fourth Proportional to 61,409.42, 92,113.80 and 53,064.05

Step by Step Solution

1. Step 1: Write the proportion equation
   61,409.42 : 92,113.80 = 53,064.05 : x
2. Step 2: Convert to fraction form
   61,409.42/92,113.80 = 53,064.05/x
3. Step 3: Cross multiply
   61,409.42x = 92,113.80 × 53,064.05
4. Step 4: Simplify right side
   61,409.42x = 4,887,931,288.89
5. Step 5: Solve for x
   x = 4,887,931,288.89/61,409.42
6. Step 6: Final answer
   x = 79,595.79