Finding the Fourth Proportional to 61,611.42, 91,979.48 and 59,424.42

Step by Step Solution

1. Step 1: Write the proportion equation
   61,611.42 : 91,979.48 = 59,424.42 : x
2. Step 2: Convert to fraction form
   61,611.42/91,979.48 = 59,424.42/x
3. Step 3: Cross multiply
   61,611.42x = 91,979.48 × 59,424.42
4. Step 4: Simplify right side
   61,611.42x = 5,465,826,953.78
5. Step 5: Solve for x
   x = 5,465,826,953.78/61,611.42
6. Step 6: Final answer
   x = 88,714.51