Finding the Fourth Proportional to 61,164.10, 91,746.15 and 61,164.10

Step by Step Solution

1. Step 1: Write the proportion equation
   61,164.10 : 91,746.15 = 61,164.10 : x
2. Step 2: Convert to fraction form
   61,164.10/91,746.15 = 61,164.10/x
3. Step 3: Cross multiply
   61,164.10x = 91,746.15 × 61,164.10
4. Step 4: Simplify right side
   61,164.10x = 5,611,570,693.22
5. Step 5: Solve for x
   x = 5,611,570,693.22/61,164.10
6. Step 6: Final answer
   x = 91,746.15