Finding the Fourth Proportional to 91,917.61, 137,845.41 and 34,978.00

Step by Step Solution

1. Step 1: Write the proportion equation
   91,917.61 : 137,845.41 = 34,978.00 : x
2. Step 2: Convert to fraction form
   91,917.61/137,845.41 = 34,978.00/x
3. Step 3: Cross multiply
   91,917.61x = 137,845.41 × 34,978.00
4. Step 4: Simplify right side
   91,917.61x = 4,821,556,730.41
5. Step 5: Solve for x
   x = 4,821,556,730.41/91,917.61
6. Step 6: Final answer
   x = 52,455.20