Finding the Fourth Proportional to 90,308.96, 124,615.72 and 52,068.08

Step by Step Solution

1. Step 1: Write the proportion equation
   90,308.96 : 124,615.72 = 52,068.08 : x
2. Step 2: Convert to fraction form
   90,308.96/124,615.72 = 52,068.08/x
3. Step 3: Cross multiply
   90,308.96x = 124,615.72 × 52,068.08
4. Step 4: Simplify right side
   90,308.96x = 6,488,501,278.22
5. Step 5: Solve for x
   x = 6,488,501,278.22/90,308.96
6. Step 6: Final answer
   x = 71,847.81