Finding the Fourth Proportional to 90,499.51, 135,527.72 and 63,779.83

Step by Step Solution

1. Step 1: Write the proportion equation
   90,499.51 : 135,527.72 = 63,779.83 : x
2. Step 2: Convert to fraction form
   90,499.51/135,527.72 = 63,779.83/x
3. Step 3: Cross multiply
   90,499.51x = 135,527.72 × 63,779.83
4. Step 4: Simplify right side
   90,499.51x = 8,643,933,945.35
5. Step 5: Solve for x
   x = 8,643,933,945.35/90,499.51
6. Step 6: Final answer
   x = 95,513.60