Finding the Fourth Proportional to 61,322.50, 91,447.07 and 60,761.98

Step by Step Solution

1. Step 1: Write the proportion equation
   61,322.50 : 91,447.07 = 60,761.98 : x
2. Step 2: Convert to fraction form
   61,322.50/91,447.07 = 60,761.98/x
3. Step 3: Cross multiply
   61,322.50x = 91,447.07 × 60,761.98
4. Step 4: Simplify right side
   61,322.50x = 5,556,505,038.40
5. Step 5: Solve for x
   x = 5,556,505,038.40/61,322.50
6. Step 6: Final answer
   x = 90,611.20