Finding the Fourth Proportional to 65,314.09, 90,152.58 and 42,656.60

Step by Step Solution

1. Step 1: Write the proportion equation
   65,314.09 : 90,152.58 = 42,656.60 : x
2. Step 2: Convert to fraction form
   65,314.09/90,152.58 = 42,656.60/x
3. Step 3: Cross multiply
   65,314.09x = 90,152.58 × 42,656.60
4. Step 4: Simplify right side
   65,314.09x = 3,845,602,435.87
5. Step 5: Solve for x
   x = 3,845,602,435.87/65,314.09
6. Step 6: Final answer
   x = 58,878.61